| Name | PROEFROCK, Jan | |
| Gender | Female | |
| Person ID | I174060 | Laur from Germany |
| Last Modified | 1 Oct 2016 | |
| Father | PROEFROCK, Robert Allen, b. 19 Aug 1929, North Tonawanda, Niagara County, NY d. 23 Feb 2016, Buffalo, Erie County, NY (Age 86 years) | |
| Mother | MACHABY, Mary Elizabeth, b. 31 Oct 1931, Malone, Franklin County, NY d. 19 May 2015, Degraff Memorial Hospital, North Tonawanda, Niagara County, NY (Age 83 years) | |
| Marriage | 11 Aug 1951 | North Tonawanda, Niagara County, NY |
| Family ID | F37312 | Group Sheet | Family Chart |
| Family | LOEFFERT-FOSS, Donald | |
| Family ID | F63401 | Group Sheet | Family Chart |
| Last Modified | 15 Feb 2026 | |