- Geological Survey2,488
- Forest Service2,314
- Civil Service Commission2,049
- Labor Statistics Bureau1,981
- Reclamation Bureau1,843
- Fish and Wildlife Service1,727
- Coast and Geodetic Survey1,649
- Foreign Commerce Bureau1,480
- Public Health Service1,472
- Federal Security Agency1,420
- Agricultural Marketing Service1,410
- Justice Department1,339
- National Aeronautics and Space Administration1,264
- Education Office1,239
- Interstate Commerce Commission1,203
- Agricultural Research Service1,134
- Treasury Dept.1,117
- Foreign and Domestic Commerce Bureau1,074
- National Park Service985
- Civil Aeronautics Administration969