| Sex | Male |
| Age | Unknown |
| |
| Born | about 1903 | in | New York City, NY (US) |
| Deceased | |
|
| Father | Benjamin van Blerkom |
| | Born | 14 May 1867 |
| | Died | 1 May 1946 |
| Mother | Elizabeth Rosenthal |
| | Born | 1869 |
| | Deceased | | Brother | Louis born 1889 |
| Brother | Samuel born 2 January 1891 |
| Brother | Benjamin born 1893 |
| Brother | Joseph born 19 December 1893 |
| Brother | David born 7 April 1900 |
|
