- 5 Duff Gordon, Lucie, Lady, 1821-1869
- 1 Duff, Gordon & Co.
- 1 Duffers
- 1 Duffield Hotel
- 1 Duffield Street
- 1 Duffield's Hotel
- 3 Duhring, Okie, & Ziegler, Architects
- 1 Duke, James Buchanan
- 1 Duke's Garden
- 2 Duluth, Minnesota
- 1 Dulwich, England
- 2 Dumas, Alexandre, 1802-1870
- 2 Dumbwaiters
- 68 Dummies (printed matter)
- 16 Dump trucks
- 1 Duncan & Spangler Coals
- 1 Duncan Street
- 1 Duncan, Norman, 1871-1916
- 8 Dundas-Lippincott Mansion
- 7 Dungeons
- 1 Dunlap & Co. (Firm)
- 2 Duplex houses
- 2 DuPonceau, Louisa
- 2 DuPonceau, Peter Stephen, 1760-1844
- 6 Dupont Street
- 3 Durang, Edwin Forrest, Architect
- 13 Durell, Ann
- 3 Durham Cathedral
- 15 Durham, England
- 1 Duryeas' Glen Cove Starch Manufacturing Company
- 1 Dusk
- 1 Dutch
- 2 Dutch doors
- 1 Dutch Gap Canal
- 2 Dutch Gap, Virginia
- 1 Dutcher Temple Co.
- 1 Dutchess County, New York
- 2 Dwarves
- 151 Dwellings
- 1 Dyer Bros., Hatters
