- Coast and Geodetic Survey13,767
- Labor Statistics Bureau13,176
- Forest Service13,117
- Foreign and Domestic Commerce Bureau11,745
- Public Health Service11,308
- Patent Office9,397
- Treasury Department8,752
- Weather Bureau8,643
- Claims Committee, House7,738
- National Advisory Committee for Aeronautics7,577
- Civil Service Commission7,435
- Engineer Department7,338
- Plant Industry Bureau7,236
- Agricultural Economics Bureau7,228
- Education Office7,183
- National Labor Relations Board7,174
- Post Office Department6,677
- Fish and Wildlife Service6,415
- National Bureau of Standards6,393
- Pensions Committee6,376