- Minerals Mobilization Office1
- Minerals and Solid Fuels Office2
- Mines Bureau20,989
- Mines Bureau, Interior Dept.25
- Mines and Mining Committee146
- Mines and Mining Committee, House69
- Mines and Mining Committee, Senate68
- Mines and Mining committee, House1
- Mines and Mining, Committee on16
- Mining Bureau4
- Mining Enforcement and Safety Administration38
- Minks and Mining Committee2
- Mint10
- Mint Bureau242
- Mint Bureau (Treasury Department)17
- Mint Bureau Assay Commission1
- Mint, Bureau of the22
- Mint, Philadelphia1
- Miscellaneous Division5
- Missing Persons in Southeast Asia, Select Committee on, House2