- Interoceanic Canals, Committee on1
- Interstate Commerce Committee10
- Interstate Commerce, Committee on30
- Interstate and Foreign Commerce Committee439
- Interstate and Foreign Commerce, Committee on150
- Invalid Cessions Committee204
- Invalid Pensions Committee3,762
- Invalid Pensions, Committee on1,876
- Irrigation and Reclamation of Arid Lands Committee1
- Irrigation and Reclamation of Arid Lands, Committee on7
- Irrigation of Arid Lands Committee13
- Irrigation of Arid Lands, Committee on2
- Judiciary Committee287
- Judiciary, Committee on the57
- Labor Committee16
- Labor, Committee on3
- Laws291
- Laws, Committee on Revision of2
- Library Committee110
- Library Joint Committee on1