- Brock & Weymouth Inc.26
- Center for Remote Sensing26
- United States Engineer Office26
- Young, J. H. (James Hamilton)26
- Falteisek, Jan25
- Struble, Richard A.25
- United States. Army. Corps of Topographical Engineers25
- Geological Survey of Canada24
- Saint Paul (Minn.). Department of Public Works24
- United States. Forest Service24
- Morden, Robert, approximately 1650-170323
- Bloomgren, Bruce A.22
- Hondius, Hendrik, 1597-1651. Appendix Atlas of the British Isles and Northern Europe22
- Jansson, Jan, 1588-1664. Appendix Atlas of the British Isles and Northern Europe22
- New Jersey. Department of Conservation and Economic Development22
- Swanson, Lynn22
- Bauer, Emily J.21
- United States. Bureau of Chemistry and Soils21
- Wahl, Timothy E.21
- Cary, John, approximately 1754-183520