| Name | PROEFROCK, Arthur John | |
| Birth | 1882 | MI |
| Gender | Male | |
| Death | Yes, date unknown | |
| Person ID | I118071 | Laur from Germany |
| Last Modified | 1 Oct 2016 | |
| Father | PROEFROCK, Christian Frederick, b. 19 Mar 1856, Town of Wheatfield, Niagara County, NY d. 3 Apr 1945, Wilmette, Cook County, IL (Age 89 years) | |
| Mother | MARZ, Wilhelmine, b. 25 Dec 1855, Prussia d. 25 Oct 1940, Wilmette, Cook County, IL (Age 84 years) | |
| Marriage | 7 May 1881 | Mecosta, Mecosta County, MI |
| Family ID | F41257 | Group Sheet | Family Chart |