- Sewall, Joseph S. (1827-1917)1
- Shchapov, Kirill1
- Smith, Guy-Harold, 1895-19761
- Southeast Wisconsin Regional Planning Commission1
- Standard Map Company1
- Strothman, E. A1
- Tanner, Henry Schenck, 1786-1858 [sculptor]1
- Toot, Ryan1
- U.S. Lake Survey1
- United States. Army. Corps of Engineers1
- United States. Bureau of Public Roads1
- United States. General Land Office.1
- United States. Post Office Department1
- Van Hise, Charles Richard, 1857-19181
- Van Pelt, Amanda1
- Vandermaelen, Philippe, 1795-18691
- Vitense, Kelsey1
- Waukesha County Dept of Parks and Land Use - Parks Division1
- Whittlesey, Asaph, 1826-18791
- Wilburn, Paul1