- Labor Committee, House157
- Expenditures in Executive Departments Committee, Senate142
- American Small Business, Special Committee to Study Problems of, Senate138
- Education and Labor Committee, House131
- Post Office and Civil Service Committee, House129
- Public Works Committee, House121
- Insular Affairs Committee, House113
- Irrigation of Arid Lands Committee112
- Mines and Mining Committee112
- Government Operations Committee, Senate107
- Labor Committee101
- Public Works Committee, Senate100
- Education and Labor Committee96
- Pensions Committee, House95
- Privileges and Elections Committee95
- Coinage, Weights and Measures Committee, House93
- Post-Office and Post-Roads Committee93
- Patents Committee, Senate92
- Public Lands Committee, Senate87
- Roads Committee, House87