- 9 Historic monuments
- 43 Historic parks
- 1 Historic sites
- 4 Historic towns
- 4 Historic trees
- 5 Historical pageants
- 23 Historical parks
- 9 Historical societies
- 12 Histories
- 2 History (discipline)
- 1 Hitchcock Bros.
- 1 Hitchcock, Gilbert Monell (1859 – 1934)
- 1 Hitchcock's Dime Music
- 5 Hitching posts
- 7 Hitler, Adolf, 1889-1945
- 1 Hoboken, New Jersey
- 1 Hobson, Arthur, 1819-1904
- 1 Hoefnagel, Joris, 1542-1601
- 3 Hoes
- 7 Hoessrich & Woerffel
- 1 Hoessrich and Woerffel
- 1 Hoff, George J. Coal & Lumber Yard
- 1 Hoffman (Firm)
- 1 Hoffman-Henon Co., Architects
- 1 Hoffmann, C. Machine Shop
- 4 Hoffnagle Street
- 1 Hoffy, Alfred M., b. ca. 1790
- 1 Hofstetter Bros. Blank Book Factory
- 4 Hog Island, Pennsylvania
- 8 Hogarth, Georgina, 1793-1863
- 44 Hogarth, Georgina, 1827-1917
- 1 Hogarth, Helen Isabella, 1833-1890
- 9 Hogarth, Mary Scott, 1820-1837
- 1 Hogg Hall
- 2 Hogge, Mary Harness
- 2 Hohman, Johann Georg
- 2 Hoisting machinery
- 2 Hoists
- 1 Holding hands
- 1 Holdrege, Nebraska
