Books in Children's Fiction (sorted alphabetically)
- Scouts of Stonewall: The Story of the Great Valley Campaign Joseph A. Altsheler
- Scouts of the Valley Joseph A. Altsheler
- Settler and the Savage R. M. Ballantyne
- Shades of the Wilderness: A Story of Lee's Great Stand Joseph A. Altsheler
- Shadow of the North: A Story of Old New York and a Lost Campaign Joseph A. Altsheler
- Shifting Winds: A Tough Yarn R. M. Ballantyne
- Silver Lake R. M. Ballantyne
- Six Months at the Cape R. M. Ballantyne
- Snowflakes and Sunbeams; Or, The Young Fur-traders: A Tale of the Far North R. M. Ballantyne
- Soldier Boy; or, Tom Somers in the Army: A Story of the Great Rebellion Oliver Optic
- South American Fights and Fighters, and Other Tales of Adventure Cyrus Townsend Brady
- Stand By The Union Oliver Optic
- Star of Gettysburg: A Story of Southern High Tide Joseph A. Altsheler
- Steve and the Steam Engine Sara Ware Bassett
- St. George for England G. A. Henty
- Store Boy Jr. Horatio Alger
- Story of Red Feather: A Tale of the American Frontier Edward Sylvester Ellis
- Story of the Amulet E. Nesbit
- Story of the Rock R. M. Ballantyne
- Story of the Treasure Seekers E. Nesbit
- Struggling Upward, or Luke Larkin's Luck Jr. Horatio Alger
- Sue, A Little Heroine L. T. Meade
- Sunk at Sea R. M. Ballantyne
- Sun of Quebec: A Story of a Great Crisis Joseph A. Altsheler
- Sweet Girl Graduate L. T. Meade