- Sides family--Periodicals.1
- Sigel, Franz,1824-1902.1
- Simmons, Robert W.1
- Sine, Albert Grant.1
- Singer, Mary Rebecca White.1
- Sir Toby Belch (Fictitious character)1
- Sites family--Periodicals.1
- Sitting Bull, 1834?-1890.1
- Sitze family--Periodicals.1
- Skidmore, Wilbur M.1
- Slaatte, Howard Alexander, 1919-2010.1
- Sleeth, Ronald E., 1921-1
- Smith family.2
- Smith, Aaron.1
- Smith, Art.1
- Smith, Charles B.2
- Smith, Everett Crittenden.1
- Smith, G. Wayne (Gerald Wayne). History of Greene County Pennsylvania.1
- Smith, Mary Alice Tieche, 1918-1987.1
- Smith, Ralph.1
