- Post-Office Department, Select Committee on Relations of Members with the1
- Post-Office and Post-Roads Committee94
- Post-Office and Post-Roads, Committee on the12
- Post-Offices and Post-Roads, Committee on6
- Post-Offices and Post-Roads, Committee on the2
- Presidential Campaign Activities, Select Committee on28
- Printing Committee97
- Printing, Committee on21
- Private Land Claims Committee5
- Private Land Claims, Committee on1
- Privileges and Elections Committee101
- Privileges and Elections, Committee on5
- Public Buildings and Grounds Committee486
- Public Buildings and Grounds, Committee on7
- Public Buildings and Groups, Committee on10
- Public Health and National Quarantine Committee36
- Public Health and National Quarantine, Committee on1
- Public Lands Committee1,060
- Public Lands and Surveys Committee298
- Public Lands, Committee of the22