- Geological Survey (U.S.) (20)
- Rand McNally and Company (7)
- New York (N.Y.). Commission on Building Districts and Restrictions. (6)
- Robinson, E. (6)
- de Fer, Nicolas, 1646-1720 (5)
- Davies, Benjamin Rees (3)
- Geological Survey of New Jersey (3)
- Irvine, William, 1741-1804 (3)
- Lamb, George (3)
- Rand McNally and Company. (3)
- Sampson, Murdock & Co. (3)
- Survey of India (3)
- Williams, Wellington (3)
- Andriveau-Goujon, J. (2)
- Appalachian Mountain Club (2)
- Braun, Georg, 1540 or 1541-1622 (2)
- Cooke, Chas. E. (2)
- Cruchley, G. F. (2)
- Ellicott, Andrew, 1754-1820 (2)
- Fowler, T. M. (Thaddeus Mortimer), 1842-1922 (2)