- International Relations Committee27
- Interstate Commerce Committee15
- Interstate Commerce Joint Subcommittee2
- Interstate and Foreign Commerce Committee2,599
- Interstate and Foreign Commerce Committee, House164
- Invalid Pensions Committee257
- Invalid Pensions Committee, House3
- Irrigation and Reclamation Committee44
- Irrigation and Reclamation Committee, House17
- Irrigation and Reclamation of Arid Lands Committee3
- Irrigation of Arid Lands Committee113
- Judiciary Committee1,671
- Judiciary Committee, House89
- Justice Department, Select Committee on Investigation of1
- Labor Committee107
- Labor Committee, House6
- Langley, John W., Select Committee to Inquire into Qualifications of1
- Laws, Committee on Revision of24
- Laws, Committee on Revision of, House2
- Laws, Select Committee on Revision of1