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- Geological Survey (U.S.)2,145
- Geological Survey of Canada51
- United States Coast Survey, issuing body23
- U.S. Coast and Geodetic Survey18
- Hackman, Robert J.17
- Marshall, C. H.17
- United States. Bureau of Public Roads16
- Thorsteinsson, R.14
- Bramkamp, Richard A.13
- Darton, Nelson Horatio, 1865-194813
- Detterman, J. S.13
- Roehler, Henry W.13
- Taylor, Frederick C.13
- Berge Exploration Inc10
- United States Coast Survey10
- Campbell, Marius R. (Marius Robinson), 1858-19409
- Great Britain. Ordnance Survey9
- Hansen, Wallace R., 1920-9
- McQueen, Kathleen9
- Soister, Paul E.9
