- 1920 United States Federal Census
- 1930 United States Federal Census
- Benton, Meeker, and Todd Counties, Minnesota Farm Directory, 1913-14
- Biographical Directory of the United States Congress, 1774-2005 Free
- Box Elder County, Utah Mining Notices of Location, 1889-1893
- Brooklyn, New York, U.S., Bethlehem Steel Shipyard Employment Cards, 1908-1965
- California, U.S., State Roster Government and Military records, 1909
- California, U.S., State Roster Government and Military records, 1911
- California, U.S., Occupational Licenses, Registers, and Directories, 1876-1969
- California, U.S., Railroad Employment Records, 1862-1950 Free Index
- California, U.S., State Hospital Records, 1856-1923
- Colorado, Steelworks Employment Records, 1887-1979
- Directory of Deceased American Physicians, 1804-1929
- Fulton County, Illinois Farmers Directory, 1917
- Hillsdale County, Michigan, U.S., Farm Directory, 1919-1924
- Independent (New York City) Ministerial Register, 1892-1895
- Jasper County, Iowa 1892 Farmers Directory
- Johnson County, Kansas Farmer Directory, 1921
- Kansas, U.S., Atchison, Topeka and Santa Fe Railway Prior Service Records, 1859-1935
- Leavenworth County, Kansas Farmer Directory, 1921
- Licking County, Ohio Farm Directory, 1915-20
- Livingston County, Illinois, Farmers Directory, 1917
- Montgomery County, Indiana Farmer Directory, 1920
- Motion Picture Studio Directories, 1919 and 1921 Free Index
- New Mexico, U.S., Census, Military, and Other Records of Mexico, 1821-1846
- New York City, Public School Teacher Retirement List, 1895-1915
- New York Politicians and Postmasters, 1898
- New York Teachers Association Members, 1888
- New York, U.S., State Employment Cards and Peddlers' Licenses, 1840-1966
- Ohio Physician and Dentist Directory, 1905
- Pennsylvania, U.S., Coal Employment Records, 1900-1954 Free Index
- Protestant Episcopal Church Clerical Directory, 1898
- Records of the Virginia Company of London, Volume I-IV
- Savannah, Georgia, U.S., Select Board of Health and Health Department Records, 1824-1864, 1887-1896 Free Index
- Springfield, Missouri, U.S., St. Louis-San Francisco Railway Employee Cards, 1940-1980
- Stephenson County, Illinois Farmer Directory, 1917
- Texas, U.S., Capitol Building Payroll, 1882-1888
- Texas, U.S., Prison Employee Ledgers, 1861-1938
- Tippecanoe County, Indiana Farmer's Directory, 1919
- U.S., American Protective League Members Record Cards and Registers of Members, 1917-1919
- U.S., American Red Cross Nurse Files, 1916-1959
- U.S., Appointments of U. S. Postmasters, 1832-1971 Free Index
- U.S., Baseball Questionnaires, 1945-2005
- U.S., Chicago and North Western Railroad Employment Records, 1935-1970 Free Index
- U.S., Craftperson Files, 1600-1995
- U.S., Identification Card Files of Prohibition Agents, 1920-1925
- U.S., Mining Accidents, 1839-2006 Free
- U.S., National Register of Scientific and Technical Personnel, 1921-1970
- U.S., Northern Pacific Railway Company Personnel Files, 1890-1963
- U.S., Professional Baseball Player Profiles, 1876-2004
- U.S., Railroad Retirement Pension Index, 1934-1987
- U.S., Register of Civil, Military, and Naval Service, 1863-1959
- Utah, U.S., Select Union Pacific Railroad Personnel Records, 1890-1965
- Web: Minnesota, U.S., Women in Industry, 1919 Free
- Web: New Bedford, Massachusetts, U.S., Whaling Crew Lists Index, 1809-1927 Free
- Web: US, New England Seamen's Protection Certificate Index, 1796-1871 Free
- Winona and Wabasha Counties, Minnesota Farmers Directory, 1914
- Wisconsin, U.S., Employment Records, 1903-1988
- Wyandotte County, Kansas Farmer Directory, 1921
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