| Ida Rebecca (Faux) Hagenbaugh | 1837 | |
| Inez Irene (Hagenbush ) Leighty | 6 Sep 1903 | 29 Dec 2000 |
| Infant Hagenbaugh | 1877 | 1877 |
| Infant Hagenbuck | 30 Oct 1902 | 1 Nov 1902 |
| Iona (Seagraves) Hagenbuck | 3 May 1876 | 5 Jan 1962 |
| Irma (Hagenbaugh) Lewis | 1916 | |
| Irvine Howard Hagenbuck | 7 Jun 1881 | 21 Jul 1909 |
| Ivo "Dub" Hagenbush, Jr | 15 Jan 1925 | 2 Aug 2005 |
| Ivo Isreal Hagenbush | 6 Sep 1903 | 20 Dec 1973 |
| Janette R. Haggenbuch | 16 Nov 1872 | 24 Aug 1883 |
| Jesse E. Hagenbush | 1875 | |
| Jessie (Davis) Hagenbaugh | 12 Oct 1925 | 6 Oct 2019 |
| Joan Marie (Hagnebuch) Huitt | | |
| Jodi Lea Hagenbush | | |
| John Haggenbuch | 22 May 1834 | 16 Aug 1883 |
| John B. Hagenbaugh | 1863 | |
| John James Hagenbach | 1884 | 1965 |
| Joseph Hagenbuck | 3 Oct 1840 | 13 Oct 1908 |
| Joseph Gustav Hagenbach | 7 Jul 1889 | 11 Oct 1889 |
| Judith Hagenbuch McAlpin | | |