- 4 Stead & Miller (Silk tapestries & draperies mill)
- 1 Steadfast Mills-Joseph Culbert
- 1 Steam boilers
- 27 Steam engines
- 41 Steam locomotives
- 1 Steamboat accidents
- 2 steamboat Hotel
- 1 Steamboat Hotel
- 1 Steamboat Tavern
- 42 Steamboats
- 1 Steamer Spokane, The
- 12 Steamships
- 1 Stearns & Castor, Architects
- 1 Steck, Daniel Frederic, 1881–1950
- 2 Steel & Garland
- 1 Steel (alloy)
- 1 Steel frame construction
- 4 Steel industry
- 7 Steel mills
- 2 Steel wire
- 5 Steelton, Pennsylvania
- 1 Steel-to-steel beam hangers
- 6 Steeples (building components)
- 1 Steering wheels
- 1 Steigerwalt
- 1 Steinmetz Saw Mill
- 2 Steinway & Sons
- 6 Stenciling (process)
- 4 Stencils (images)
- 4 Stenton Avenue
- 12 Stenton House
- 1 Stenton Mill
- 1 Stenton Mills (F.W. & T.S. Henson)
- 6 Stenton, Pennsylvania
- 6 Stephen F. Whitman & Son
- 20 Stephen Girard's Bank
- 1 Stephen Tilton & Co.
- 8 Stephen, Saint, d. ca. 36
- 1 Stephen, Saint, d. ca. 36 - Reburial of relics
- 1 Stephen, Saint, d. ca. 36 - Stoning
