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- Schapringer, A. (Alois), author4
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- Simons, Manning, author4
- Simpson, James Young, 1811-18704
- Slade, D. D. (Daniel Denison), 1823-18964
- Smart, Charles, 1841-1905, author4
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- Smith, Gouverneur M. (Gouverneur Mather), author4
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- Smith, J. Lawrence (John Lawrence), 1818-1883, author4
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- Solis-Cohen, Solomon, 1857-1948, author4
- Somers, Lewis S., author4
- Spencer, Herbert, 1820-1903, author4
- Starr, M. Allen (Moses Allen), 1854-1932, author4
- Stearns, Henry Putnam, 1828-1905, author4