# | Children | Name | Born | Died | Father | Mother |
1 | | | b. 29 May 1897 | d. 5 Dec 1982 | PROEFROCK, William Albert | HILDEBRANDT, Bertha Maria Auguste |
2 | | | b. Dec 1899 | d. 1972 | PROEFROCK, William Albert | HILDEBRANDT, Bertha Maria Auguste |
3 | | | b. 27 Sep 1901 | d. 28 Aug 1978 | PROEFROCK, William Albert | HILDEBRANDT, Bertha Maria Auguste |
4 | | | b. 1905 | d. Yes, date unknown | PROEFROCK, William Albert | HILDEBRANDT, Bertha Maria Auguste |
5 | | | b. 24 Dec 1908 | d. 30 Oct 1941 | PROEFROCK, William Albert | HILDEBRANDT, Bertha Maria Auguste |
6 | | | b. 26 Dec 1910 | d. 23 Jan 1991 | PROEFROCK, William Albert | HILDEBRANDT, Bertha Maria Auguste |
7 | | | b. 8 Jan 1913 | d. 26 Nov 1940 | PROEFROCK, William Albert | HILDEBRANDT, Bertha Maria Auguste |
8 | | | b. 3 Apr 1918 | d. 28 Jan 1997 | PROEFROCK, William Albert | HILDEBRANDT, Bertha Maria Auguste |
9 | | | b. 17 Oct 1919 | d. 3 Dec 1999 | PROEFROCK, William Albert | HILDEBRANDT, Bertha Maria Auguste |