- Immigration and Naturalization Committee237
- Immigration and Naturalization Committee, House1,053
- Immigration and Naturalization Service699
- Immigration and Naturalization Service, Justice Dept.4
- Immigration and Naturalization, Committee on2
- Immigration, Bureau of13
- Immigration, Committee on3
- Imports Bureau1
- Improper Activities in Labor and Management Field, Select Committee on62
- Inauguration Joint Committee1
- Inauguration of President and Vice President, Joint Committee on Arrangements for2
- Increased Industrial Use of Agricultural Products Commission1
- Independent Treasury4
- Indian Affairs Bureau606
- Indian Affairs Committee1,902
- Indian Affairs Committee (House)59
- Indian Affairs Committee, House1,059
- Indian Affairs Committee, Senate1,196
- Indian Affairs Office902
- Indian Affairs, Committee9