Finding Aids By Congress

1st (1789–1791) (PDF)50th (1887–1889) (PDF)
2nd (1791–1793) (PDF)51st (1889–1891) (PDF)
3rd (1793–1795) (PDF)52nd (1891–1893) (PDF)
4th (1795–1797) (PDF)53rd (1893–1895) (PDF)
5th (1797–1799) (PDF)54th (1895–1897) (PDF)
6th (1799–1801) (PDF)55th (1897–1899) (PDF)
7th (1801–1803) (PDF)56th (1899–1901) (PDF)
8th (1803–1805) (PDF)57th (1901–1903) (PDF)
9th (1805–1807) (PDF)58th (1903–1905) (PDF)
10th (1807–1809) (PDF)59th (1905–1907) (PDF)
11th (1809–1811) (PDF)60th (1907–1909) (PDF)
12th (1811–1813) (PDF)61st (1909–1911) (PDF)
13th (1813–1815) (PDF)62nd (1911–1913) (PDF)
14th (1815–1817) (PDF)63rd (1913–1915) (PDF)
15th (1817–1819) (PDF)64th (1915–1917) (PDF)
16th (1819–1821) (PDF)65th (1917–1919) (PDF)
17th (1821–1823) (PDF)66th (1919–1921) (PDF)
18th (1823–1825) (PDF)67th (1921–1923) (PDF)
19th (1825–1827) (PDF)68th (1923–1925) (PDF)
20th (1827–1829) (PDF)69th (1925–1927) (PDF)
21st (1829–1831) (PDF)70th (1927–1929) (PDF)
22nd (1831–1833) (PDF)71st (1929–1931) (PDF)
23rd (1833–1835) (PDF)72nd (1931–1933) (PDF)
24th (1835–1837) (PDF)73rd (1933–1935) (PDF)
25th (1837–1839) (PDF)74th (1935–1937) (PDF)
26th (1839–1841) (PDF)75th (1937–1939) (PDF)
27th (1841–1843) (PDF)76th (1939–1941) (PDF)
28th (1843–1845) (PDF)77th (1941–1943) (PDF)
29th (1845–1847) (PDF)78th (1943–1945) (PDF)
30th (1847–1849) (PDF)79th (1945–1947) (PDF)
31st (1849–1851) (PDF)80th (1947–1949) (PDF)
32nd (1851–1853) (PDF)81st (1949–1951) (PDF)
33rd (1853–1855) (PDF)82nd (1951–1953) (PDF)
34th (1855–1857) (PDF)83rd (1953–1955) (PDF)
35th (1857–1859) (PDF)84th (1955–1957) (PDF)
36th (1859–1861) (PDF)85th (1957–1959) (PDF)
37th (1861–1863) (PDF)86th (1959–1961) (PDF)
38th (1863–1865) (PDF)87th (1961–1963) (PDF)
39th (1865–1867) (PDF)88th (1963–1965)
40th (1867–1869) (PDF)89th (1965–1967)
41st (1869–1871) (PDF) 90th (1967–1969)
42nd (1871–1873) (PDF)91st (1969–1971)
43rd (1873–1875) (PDF)95th (1977–1979)
44th (1875–1877) (PDF)96th (1979–1981)
45th (1877–1879) (PDF) 
46th (1879–1881) (PDF) 
47th (1881–1883) (PDF) 
48th (1883–1885) (PDF) 
49th (1885–1887) (PDF)