- Stanford Geospatial Center74
- Kelso, Nathaniel Vaughn22
- Patterson, Tom22
- Geological Survey (U.S.)8
- Bay Area Open Space Council6
- Conservation Lands Network6
- GreenInfo Network (Firm)6
- San Francisco Bay Area Upland Habitat Goals Project6
- J. & C. Walker (Firm)3
- Wyld, James, 1812-18873
- Arrowsmith, John, 1790-18732
- Arrowsmith, Samuel, -18392
- California. Biogeographic Data Branch2
- California. Fisheries Programs Branch2
- Centre de recherche géographique et de production cartographique (Brazzaville, Congo)2
- County of San Mateo Information Services Department2
- Cruchley, G. F.2
- Fullarton, Archibald, active 1809-18402
- GIS Lab, Newman Library, Baruch CUNY2
- Garcia, Paul2
