Peter Bernstein was born 10 April 1951 in New York City, New York, United States to Elmer Bernstein (1922-2004) and Pearl Glusman (1924-2008) .
Children
| Name | Birth | Death | Joined with |
| Leonard Elmer Bernstein (1998) | 18 July 1998 Los Angeles, California, United States | ||
| Zachary Elmer Bernstein (2003) | 29 June 2003 Los Angeles, California, United States | ||
Siblings
| Name | Birth | Death | Joined with |
| Peter Bernstein (1951) | 10 April 1951 New York City, New York, United States | Marilyn Meadows (1964) | |
| Gregory Bernstein (1955) | |||
| Name | Birth | Death | Joined with |
| Emilie A. Bernstein (1968) | |||
| Elizabeth Bernstein (1973) | |||