| Mary Magdalene (Keller) Hagenbuch | 11 Oct 1814 | 12 Aug 1889 |
| Mary Magdaline (Hagenbuch) Hess | 25 Dec 1799 | 1 Jul 1870 |
| Mary "Mae" Margaret (Schneider) Hagenbuch | 13 May 1894 | 1 Oct 1977 |
| Mary Rachel (Hagenbuch) Creasy | 19 Jan 1833 | 11 Jun 1910 |
| Mary Ann Lindner Hagenbuch | 3 Aug 1892 | 12 Apr 1896 |
| Marybelle Emma (Hagenbuch) Noll | 7 Jan 1933 | 23 Sep 1991 |
| Mason Glenn Hagenbuch | 6 Feb 2009 | |
| Matilda (Hagenbuch) Scales | 30 Nov 1836 | 20 Jun 1913 |
| Matilda S. (Hagenbuch) Fink | 15 Feb 1835 | 21 Nov 1892 |
| Matilda Teresa (Coughlin) Hagenbuch, Barton | 27 Sep 1871 | 25 Nov 1967 |
| Matthew Hagenbuch | | |
| Matthias Hagenbuch | 8 Nov 1730 | |
| Mattie Melinda (Pennypacker) Hagenbuch | 1893 | |
| Maude I. (Shipman) Hagenbuch | 1871 | 6 Jul 1958 |
| Maude Louisa (Hagenbuch) Harback | 28 Feb 1891 | 3 Aug 1976 |
| Maxine Bertelle (Hagenbuch) McHenry | 3 May 1920 | 28 May 2010 |
| May P. (Hagenbuch) Baker | 26 Dec 1895 | Mar 1970 |
| Maydell H. (Hagenbuch) Eksergian | 25 Sep 1902 | 4 Jun 1998 |
| Mayme Hagenbuch | 1907 | |
| McHenry F. Hagenbuch | 9 Oct 1892 | 22 Dec 1958 |