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).
Jor-El
Einstein then traveled incognito to Smallville to seek out a suitable family; this required his sneaking away from fawning government handlers assigned to protect/baby-sit Einstein as a vital national resource. In the course of several days in Smallville, he encountered Jonathan and Martha Kent, and decided that they would be ideal foster parents for the Kryptonian child, due to their honest and generous natures. Through a variety of ruses, Einstein arranged for the Kents to be in the immediate area when Kal-El's spaceship landed, thus ensuring he would be found and later adopted by them.