| Male LEFFLER, John William Otto |
| Birth | 2 Apr 1881 | Lockport, Niagara County, NY |
| Death | 4 Jun 1960 | Medina, Orleans County, NY |
| Burial | ||
| Marriage | 27 Feb 1906 | Town of Royalton, Niagara County, NY |
| Father | LEFFLER, Otto | F81365 Group Sheet | |
| Mother | SY, Louise Ernestine Wilhelmine | F81365 Group Sheet | |
| Female POGEL, Elizabeth Wilhelmine |
| Birth | 27 Feb 1885 | Town of Royalton, Niagara County, NY |
| Death | 11 Mar 1938 | Cleveland, Cuyahoga County, OH |
| Burial | ||
| Father | POGEL, William Frederick August | F81459 Group Sheet | |
| Mother | WEBER, Wilhelmina Augusta | F81459 Group Sheet | |
| Female LEFFLER, Minnie E M |
| Birth | 28 Feb 1907 | West Shelby, Orleans County, NY |
| Death | 11 May 2000 | Medina, Orleans County, NY |
| Burial | ||
| Spouse | SCHILLING, Arthur F | F42156 | |
| Marriage | 1 Aug 1931 | Niagara County, NY |
| Male LEFFLER, Elmer John |
| Birth | 15 Jun 1910 | West Shelby, Orleans County, NY |
| Death | 10 Jun 2008 | Medina, Orleans County, NY |
| Burial | ||
| Spouse | BRUNING, Mildred I | F64872 | |
| Marriage | ||
| Male LEFFLER, John William Otto Jr |
| Birth | 7 Jan 1919 | Middleport, Niagara County, NY |
| Death | 24 Apr 1981 | Lockport Memorial Hospital, Lockport, Niagara County, NY |
| Burial | ||
| Spouse | BAEHL, Evelyn W | F21722 | |
| Marriage | 29 Apr 1939 | Wolcottsville, Town of Royalton, Niagara County, NY |