Rank | Representative | Party | District | Seniority date | Notes |
1 | John Quincy Adams | W | MA-08 | March 4, 1831 | Dean of the House Died on February 23, 1848 while still serving in the House as Dean and U.S. Congress member. |
2 | James Iver McKay | D | NC-07 | March 4, 1831 | Became Dean of the House after Adams died while still serving in the House as Dean and U.S. Congress member. Left the House in 1849 while still serving in the House as a U.S. Congress member. |
3 | Robert Rhett | D | SC-07 | March 4, 1837 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
4 | Joshua R. Giddings | W | OH-20 | December 3, 1838 |
5 | Linn Boyd | D | KY-01 | March 4, 1839 Previous service, 1835–1837. |
6 | Isaac E. Holmes | D | SC-06 | March 4, 1839 |
7 | Jacob Thompson | D | MS-01 | March 4, 1839 |
8 | John Reeves Jones Daniel | D | NC-06 | March 4, 1841 |
9 | George S. Houston | D | AL-05 | March 4, 1841 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
10 | Charles J. Ingersoll | W | PA-04 | March 4, 1841 Previous service, 1813–1815. | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
11 | Charles Hudson | W | MA-05 | May 3, 1841 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
12 | Joseph R. Ingersoll | W | PA-02 | October 12, 1841 Previous service, 1835–1837. | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
13 | Robert C. Winthrop | W | MA-01 | November 29, 1842 Previous service, 1840–1842. | Speaker of the House |
14 | Amos Abbott | W | MA-03 | March 4, 1843 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
15 | Archibald Atkinson | D | VA-01 | March 4, 1843 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
16 | Daniel Moreau Barringer | W | NC-03 | March 4, 1843 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
17 | James A. Black | D | SC-01 | March 4, 1843 | Died on April 3, 1848 while still serving in the House as a U.S. Congress member. |
18 | James B. Bowlin | D | MO-01 | March 4, 1843 |
19 | Richard Brodhead | D | PA-10 | March 4, 1843 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
20 | Armistead Burt | D | SC-05 | March 4, 1843 |
21 | Howell Cobb | W | GA-06 | March 4, 1843 |
22 | Jacob Collamer | W | VT-02 | March 4, 1843 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
23 | George Dromgoole | D | VA-02 | March 4, 1843 Previous service, 1835–1841. | Died on April 27, 1847 while still serving in the House as a U.S. Congress member. |
24 | Orlando B. Ficklin | D | IL-03 | March 4, 1843 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
25 | Hugh A. Haralson | D | GA-04 | March 4, 1843 |
26 | Thomas J. Henley | D | IN-02 | March 4, 1843 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
27 | Washington Hunt | W | NY-34 | March 4, 1843 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
28 | Andrew Johnson | D | TN-01 | March 4, 1843 |
29 | George W. Jones | D | TN-05 | March 4, 1843 |
30 | Daniel P. King | W | MA-02 | March 4, 1843 |
31 | John H. Lumpkin | D | GA-05 | March 4, 1843 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
32 | William B. Maclay | D | NY-04 | March 4, 1843 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
33 | George P. Marsh | W | VT-03 | March 4, 1843 |
34 | Robert McClelland | D | MI-01 | March 4, 1843 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
35 | John A. McClernand | D | IL-02 | March 4, 1843 |
36 | Abraham R. McIlvaine | W | PA-07 | March 4, 1843 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
37 | John Pettit | D | IN-08 | March 4, 1843 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
38 | Julius Rockwell | W | MA-07 | March 4, 1843 |
39 | Robert C. Schenck | W | OH-03 | March 4, 1843 |
40 | Richard F. Simpson | D | SC-02 | March 4, 1843 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
41 | Caleb B. Smith | W | IN-04 | March 4, 1843 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
42 | Robert Smith | D | IL-01 | March 4, 1843 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
43 | Andrew Stewart | W | PA-18 | March 4, 1843 Previous service, 1821–1829 and 1833–1835. | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
44 | Samuel Finley Vinton | W | OH-12 | March 4, 1843 Previous service, 1823–1827. |
45 | John Wentworth | D | IL-04 | March 4, 1843 |
46 | Joseph A. Woodward | D | SC-03 | March 4, 1843 |
47 | Alexander H. Stephens | D | GA-07 | October 2, 1843 |
48 | Joseph Grinnell | W | MA-10 | December 7, 1843 |
49 | James Pollock | W | PA-13 | April 5, 1844 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
50 | Thomas H. Bayly | D | VA-07 | May 6, 1844 |
51 | Isaac E. Morse | D | LA-04 | December 2, 1844 |
52 | George Ashmun | W | MA-06 | March 4, 1845 |
53 | Henry Bedinger | D | VA-10 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
54 | John Blanchard | W | PA-17 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
55 | William G. Brown, Sr. | D | VA-15 | March 4, 1845 |
56 | Charles W. Cathcart | D | IN-09 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
57 | John G. Chapman | W | MD-01 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
58 | Lucien Bonaparte Chase | W | TN-09 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
59 | William M. Cocke | W | TN-02 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
60 | John H. Crozier | W | TN-03 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
61 | John D. Cummins | D | OH-16 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
62 | James Dixon | W | CT-01 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
63 | Joseph E. Edsall | D | NJ-03 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
64 | James J. Faran | D | OH-01 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
65 | George Fries | D | OH-17 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
66 | Meredith P. Gentry | W | TN-07 | March 4, 1845 Previous service, 1839–1841. |
67 | Artemas Hale | W | MA-09 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
68 | James G. Hampton | W | NJ-01 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
69 | John H. Harmanson | D | LA-03 | March 4, 1845 |
70 | Henry W. Hilliard | W | AL-02 | March 4, 1845 |
71 | Elias B. Holmes | W | NY-28 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
72 | John W. Houston | W | DE | March 4, 1845 |
73 | Samuel D. Hubbard | W | CT-02 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
74 | Timothy Jenkins | D | NY-20 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
75 | James H. Johnson | D | NH-04 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
76 | Thomas B. King | W | GA-01 | March 4, 1845 Previous service, 1839–1843. |
77 | Lewis C. Levin | W | PA-01 | March 4, 1845 |
78 | Thomas W. Ligon | D | MD-03 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
79 | John Pendleton | W | VA-09 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
80 | John S. Phelps | D | MO-05 | March 4, 1845 |
81 | John A. Rockwell | W | CT-03 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
82 | Joseph M. Root | W | OH-21 | March 4, 1845 |
83 | William Sawyer | D | OH-05 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
84 | Truman Smith | W | CT-04 | March 4, 1845 Previous service, 1839–1843. | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
85 | Alexander D. Sims | D | SC-04 | March 4, 1845 | Died on November 22, 1848 while still serving in the House as a U.S. Congress member. |
86 | Frederick P. Stanton | D | TN-10 | March 4, 1845 |
87 | John Strohm | W | PA-08 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
88 | Bannon Goforth Thibodeaux | D | LA-02 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
89 | James Thompson | D | PA-23 | March 4, 1845 |
90 | Robert Toombs | W | GA-08 | March 4, 1845 |
91 | Hugh White | W | NY-16 | March 4, 1845 |
92 | William W. Wick | D | IN-05 | March 4, 1845 Previous service, 1839–1841. | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
93 | Hezekiah Williams | D | ME-07 | March 4, 1845 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
94 | David Wilmot | D | PA-12 | March 4, 1845 |
95 | Emile La Sére | D | LA-01 | January 29, 1846 |
96 | James McDowell | D | VA-11 | March 6, 1846 |
97 | David S. Kaufman | D | TX-01 | March 30, 1846 |
98 | Timothy Pilsbury | D | TX-02 | March 30, 1846 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
99 | Franklin Welsh Bowdon | D | AL-07 | December 7, 1846 |
100 | Shepherd Leffler | W | IA-02 | December 29, 1846 |
101 | Green Adams | W | KY-06 | March 4, 1847 |
102 | Washington Barrow | W | TN-08 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
103 | Richard L. T. Beale | D | VA-08 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
104 | Hiram Belcher | W | ME-03 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
105 | Kinsley S. Bingham | D | MI-03 | March 4, 1847 |
106 | Ausburn Birdsall | D | NY-22 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
107 | Thomas S. Bocock | D | VA-04 | March 4, 1847 |
108 | John Botts | D | VA-06 | March 4, 1847 Previous service, 1839–1843. | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
109 | Nathaniel Boyden | W | NC-02 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
110 | Edward Bradley | D | MI-02 | March 4, 1847 | Died on August 5, 1847 while still serving in the House as a U.S. Congress member. |
111 | Jasper E. Brady | W | PA-16 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
112 | Albert G. Brown | D | MS-04 | March 4, 1847 Previous service, 1839–1841. |
113 | Charles Brown | W | PA-03 | March 4, 1847 Previous service, 1841–1843. | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
114 | Aylette Buckner | W | KY-04 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
115 | Chester Pierce Butler | W | PA-11 | March 4, 1847 |
116 | Edward C. Cabell | W | FL | March 4, 1847 Previous service, 1845–1846. |
117 | Richard S. Canby | W | OH-04 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
118 | Asa Clapp | D | ME-02 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
119 | Franklin Clark | D | ME-04 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
120 | Beverly L. Clarke | D | KY-02 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
121 | Thomas L. Clingman | W | NC-01 | March 4, 1847 Previous service, 1843–1845. |
122 | Williamson R. W. Cobb | D | AL-06 | March 4, 1847 |
123 | William Collins | D | NY-18 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
124 | Harmon S. Conger | W | NY-25 | March 4, 1847 |
125 | Robert B. Cranston | D | RI-01 | March 4, 1847 Previous service, 1837–1843. | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
126 | John W. Crisfield | W | MD-06 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
127 | John Crowell | W | OH-19 | March 4, 1847 |
128 | John Dickey | D | PA-20 | March 4, 1847 Previous service, 1843–1845. | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
129 | Rodolphus Dickinson | D | OH-06 | March 4, 1847 |
130 | Richard S. Donnell | W | NC-08 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
131 | William Duer | W | NY-23 | March 4, 1847 |
132 | Daniel Duncan | W | OH-10 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
133 | Garnett Duncan | W | KY-07 | March 4, 1847 |
134 | George G. Dunn | W | IN-06 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
135 | George N. Eckert | W | PA-14 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
136 | Thomas O. Edwards | W | OH-09 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
137 | Elisha Embree | W | IN-01 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
138 | Alexander Evans | W | MD-05 | March 4, 1847 |
139 | Nathan Evans | W | OH-14 | March 4, 1847 |
140 | John W. Farrelly | W | PA-22 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
141 | Winfield S. Featherston | D | MS-02 | March 4, 1847 |
142 | David Fisher | W | OH-02 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
143 | Thomas Flournoy | D | VA-03 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
144 | John Freedley | W | PA-05 | March 4, 1847 |
145 | Richard French | D | KY-09 | March 4, 1843 Previous service, 1835–1837 and 1843–1845. | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
146 | Andrew S. Fulton | W | VA-13 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
147 | John P. Gaines | W | KY-10 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
148 | William L. Goggin | W | VA-05 | March 4, 1847 Previous service, 1839–1843 and 1844–1845. | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
149 | Daniel Gott | W | NY-24 | March 4, 1847 |
150 | James S. Green | D | MO-03 | March 4, 1847 |
151 | Dudley S. Gregory | W | NJ-05 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
152 | Nathan K. Hall | W | NY-32 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
153 | Willard Preble Hall | D | MO-04 | March 4, 1847 |
154 | David Hammons | D | ME-01 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
155 | Moses Hampton | W | PA-21 | March 4, 1847 |
156 | Sampson W. Harris | D | AL-03 | March 4, 1847 |
157 | William Henry | W | VT | March 4, 1847 |
158 | Hugh Lawson White Hill | D | TN-04 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
159 | William T. Haskell | W | TN-11 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
160 | John M. Holley | W | NY-27 | March 4, 1847 | Died on March 8, 1848 while still serving in the House as a U.S. Congress member. |
161 | John W. Hornbeck | W | PA-06 | March 4, 1847 | Died on January 16, 1848 while still serving in the House as a U.S. Congress member. |
162 | Samuel W. Inge | D | AL-04 | March 4, 1847 |
163 | Alexander Irvin | W | PA-24 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
164 | Alfred Iverson, Sr. | D | GA-02 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
165 | John Gayle | W | AL-01 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
166 | David S. Jackson | D | NY-06 | March 4, 1847 | Resigned on April 19, 1848 while still serving in the House as a U.S. Congress member. |
167 | John Jameson | D | MO-02 | March 4, 1847 Previous service, 1839–1841 and 1843–1845. | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
168 | Daniel B. St. John | W | NY-09 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
169 | Robert W. Johnson | D | AR | March 4, 1847 |
170 | John W. Jones | D | GA-03 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
171 | Orlando Kellogg | W | NY-14 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
172 | William Kennon, Jr. | D | OH-15 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
173 | Samuel Lahm | D | OH-18 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
174 | Sidney Lawrence | D | NY-15 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
175 | William T. Lawrence | W | NY-26 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
176 | Abraham Lincoln | W | IL-07 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
177 | Frederick W. Lord | D | NY-01 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
178 | Job Mann | D | PA-19 | March 4, 1847 Previous service, 1835–1837. |
179 | Dudley Marvin | W | NY-31 | March 4, 1847 Previous service, 1823–1829. | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
180 | Robert M. McLane | D | MD-04 | March 4, 1847 |
181 | John K. Miller | D | OH-11 | March 4, 1847 |
182 | Charles S. Morehead | W | KY-08 | March 4, 1847 |
183 | Jonathan D. Morris | D | OH-07 | March 4, 1847 |
184 | Joseph Mullin | W | NY-19 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
185 | Henry C. Murphy | D | NY-02 | March 4, 1847 Previous service, 1843–1845. | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
186 | William Nelson | W | NY-07 | March 4, 1847 |
187 | Henry Nes | D | PA-15 | March 4, 1847 Previous service, 1843–1845. |
188 | William A. Newell | W | NJ-02 | March 4, 1847 |
189 | Henry Nicoll | D | NY-03 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
190 | David Outlaw | W | NC-09 | March 4, 1847 |
191 | John G. Palfrey | W | MA-04 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
192 | Charles H. Peaslee | D | NH-02 | March 4, 1847 |
193 | Lucius B. Peck | D | VT-04 | March 4, 1847 |
194 | George Petrie | D | NY-17 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
195 | Samuel Peyton | D | KY-03 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
196 | Harvey Putnam | W | NY-33 | March 4, 1847 Previous service, 1838–1839. |
197 | Gideon Reynolds | W | NY-12 | March 4, 1847 |
198 | Thomas Ritchey | D | OH-13 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
199 | John L. Robinson | D | IN-03 | March 4, 1847 |
200 | William R. Rockhill | D | IN-10 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
201 | James D. Roman | W | MD-02 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
202 | Robert L. Rose | W | NY-29 | March 4, 1847 |
203 | David Rumsey | W | NY-30 | March 4, 1847 |
204 | Augustine Henry Shepperd | W | NC-04 | March 4, 1847 Previous service, 1827–1839 and 1841–1843. |
205 | Eliakim Sherrill | W | NY-10 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
206 | Peter H. Silvester | W | NY-11 | March 4, 1847 |
207 | John I. Slingerland | W | NY-13 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
208 | Ephraim K. Smart | D | ME-05 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
209 | George A. Starkweather | D | NY-21 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
210 | William Strong | D | PA-09 | March 4, 1847 |
211 | Frederick A. Tallmadge | W | NY-05 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
212 | John L. Taylor | W | OH-08 | March 4, 1847 |
213 | James Houston Thomas | D | TN-06 | March 4, 1847 |
214 | John B. Thompson | W | KY-05 | March 4, 1847 |
215 | Richard W. Thompson | W | IN-07 | March 4, 1847 Previous service, 1841–1843. | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
216 | Robert A. Thompson | D | VA-14 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
217 | William Thompson | D | IA-01 | March 4, 1847 |
218 | Benjamin Babock Thurston | D | RI-02 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
219 | Patrick W. Tompkins | W | MS-03 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
220 | Amos Tuck | D | NH-01 | March 4, 1847 |
221 | Thomas J. Turner | D | IL-06 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
222 | Abraham W. Venable | D | NC-05 | March 4, 1847 |
223 | John Van Dyke | W | NJ-04 | March 4, 1847 |
224 | Cornelius Warren | W | NY-08 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
225 | James S. Wiley | D | ME-06 | March 4, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
226 | James Wilson II | W | NH-03 | March 4, 1847 |
| Richard K. Meade | D | VA-02 | August 5, 1847 |
| William B. Preston | W | VA-12 | November 25, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
| William A. Richardson | D | IL-05 | December 6, 1847 |
| Charles E. Stuart | D | MI-02 | December 6, 1847 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
| Samuel A. Bridges | D | PA-06 | March 6, 1848 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
| Horace Mann | W | MA-08 | April 3, 1848 |
| Mason C. Darling | D | WI-02 | June 8, 1848 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
| William Pitt Lynde | D | WI-01 | June 8, 1848 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
| Daniel Wallace | D | SC-01 | June 12, 1848 |
| Esbon Blackmar | W | NY-27 | December 4, 1848 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
| Horace Greeley | W | NY-06 | December 4, 1848 | Left the House in 1849 while still serving in the House as a U.S. Congress member. |
| John McQueen | D | SC-04 | February 12, 1849 |