- 1 Tuttle & Bailey Manufacturing Co.
- 2 Twaddell Shoes (Firm)
- 9 Twain, Mark, 1835-1910
- 1 Twelfth Night
- 80 Twelfth Street
- 1 Twelfth Street
- 1 Twelfth Street
- 44 Twentieth Street
- 50 Twentieth Street
- 6 Twenty-Eighth Street
- 22 Twenty-Fifth Street
- 32 Twenty-First Street
- 1 Twenty-First Street
- 20 Twenty-Fourth Street
- 5 Twenty-Ninth Street
- 43 Twenty-Second Street
- 6 Twenty-Seventh Street
- 33 Twenty-Sixth Street
- 44 Twenty-Third Street
- 1 Twenty-Third Street
- 5 Twine industry
- 1 Twining, Thomas, 1806-1875
- 1 Two o'clock at the Procurator's office in Venice (Work of Art)
- 28 Two-story
- 1 Tygert Allen Fertilizer Co. Works
- 1 Tyler, John, 1790-1862
- 1 Tyler, Wat, d. 1381
- 1 Type metal
- 2 Typefounding
- 2 Typescripts
- 2 Typesetting machines
- 3 Typewriter Inspection Co.
- 3 Typewriters
- 7 Typography
- 8 Tyrannosaurus
- 1 Tyrrell, J. F., & Co.
- 4 Tyson Avenue
- 1 U.S. Department of State
- 1 U.S. Wind Engine & Pump Co.
- 2 U.S.-Mexican War, 1846-1848