- 1 Tripple's Shoe Store
- 2 Triptychs
- 2 Triumphal arches (memorial arches)
- 1 Trois Freres restaurant
- 1 Troisdorfer (Firm)
- 984 Trolley cars
- 1 Trolleybuses
- 1 Trollope, Frances Milton, 1780-1863
- 11 Trollope, Thomas Adolphus, 1810-1892
- 3 Trombones
- 1 Tronie
- 2 Troop movements
- 1 Troop movements--British--Massachusetts--Boston--1760-1770.
- 1 Tropical garden
- 1 Troth's Saw Mill
- 2 Trotsky, Leon, 1879-1940
- 3 Trotters (horses)
- 1 Troubadour
- 6 Troubles
- 4 Troughs
- 1 Trout
- 2 Trowels
- 3 Truck cranes
- 10 Truck terminals
- 10 Truck trailers
- 46 Trucks
- 6 True Cross
- 37 Trumbauer, Horace (1868-1938), Architect
- 60 Trumpets
- 1 Trunks (containers)
- 1 Truro, Thomas Wilde, Baron, 1782-1855
- 1 Truss bridges
- 1 Trust
- 1 Trust Co. of North America
- 19 Trust companies
- 3 Tubas
- 1 Tube industry
- 1 Tuber (plant material)
- 5 Tubes
- 1 Tuck Cigar Co.
