- Tack Room Restaurant
- Tang, Esther Don
- Tanner, Clara
- Tapia, Maria
- Tapie, Etienne
- Taylor, Jared D.
- Taylor, Rosemary
- Tempe Land & Improvement Company
- Tempe Settlers
- Temple, Walter
- Tenney, Ammon M.
- Tevis, James
- Thacker, Velma
- Thalheimer, Walter J.
- Thomas-Davis Clinic
- Thomas Family
- Thomas, Dorothea
- Thomas, George
- Thompson, George
- Thurmond, Robert E.
- Tidball, Eugene
- Tilford, Ernest & Margaret
- Tillotson, Miner R.
- Toles, Elsie
- Tombstone, Arizona Bank Books
- Tombstone-Bisbee Papers
- Tombstone District Mines
- Tombstone-Wells Fargo Museum
- Tompkins, Edith
- Tonge, Phylena W.
- Tonge, William
- Torrance, Robert F.
- Torres, Alva B.
- Toulouse, Joseph
- Towle, Thelma Bonney Hall
- Town & Gown Club
- Township Maps
- Trailride Groups
- Trippel, Eugene
- Trischka, Carl
- Tritle, Frederick
- Truman, Alice
- Truman, George E.
- Tucker, N. G.
- Tucson Automobile Club
- Tucson Balloon Festival
- Tucson Business & Professional Women’s Club
- Tucson Child Guidance Clinic
- Tucson Children’s Museum Restoration
- Tucson-Chinese Collection
- Tucson City Planning Commission
- Tucson Commission on Human Relations
- Tucson Committee for Interracial Understanding
- Tucson Corral of the Westerners
- Tucson Dialect Study
- Tucson Electric Power Company
- Tucson Festival Society
- Tucson Fine Arts Association
- Tucson Fire Department
- Tucson Football Cowboys
- Tucson Garden Club
- Tucson Gem & Mineral Society
- Tucson Globe Copper Company
- Tucson Grocer Company
- Tucson High School
- Tucson Ice and Cold Storage
- Tucson Indian Training School
- Tucson Ledgers
- Tucson Little Theatre
- Tucson Mercantile Association
- Tucson Musical Arts Club
- Tucson-Pima County Historical Commission
- Tucson Planning and Zoning Commission
- Tucson Police Department
- Tucson Printing & Publishing Company
- Tucson Rapid Transit Company
- Tucson Regional Plan, Inc.
- Tucson Rifle Club
- Tucson Rimers
- Tucson Title Insurance Company
- Tucson Unified School District
- Tuscon Water Department
- Tucson Woman’s Club
- Tucson Woman’s Home Council of Missions (MS 636)
- Tucson Woman’s Home Council of Missions (MS 905)
- Tullar, Robert S.
- Tully, Charles
- Twin Buttes, Arizona
