Elizabeth Roboz Einstein
Roboz married Hans Albert Einstein, first son of physicist Albert Einstein, and professor of hydraulic engineering at the University of California, Berkeley, in June 1959. They did not have any children together, although Hans had four children from his first marriage to Frieda Knecht, only two of whom survived into adulthood. Hans died on July 26, 1973, and Roboz wrote a biography of him, "Hans Albert Einstein: Reminiscences of his Life and our Life Together" (1992).
Bob Einstein
Einstein was born in 1942 in Los Angeles, to a Jewish family. His parents were the comic Harry Einstein, best known for playing the character Parkyakarkus on radio and in the movies, and the actress-singer Thelma Leeds. His younger brother is comedian and writer Albert Brooks (born Albert Lawrence Einstein), and his older brother, Cliff Einstein, is a retired advertising executive in Los Angeles. He was a 1965 graduate of Chapman College.