Elkan Roe was a son of Barend Roe and Elisabeth Barber He married 25 October 1933 in Amsterdam Marianna Barber, a daughter of Manus Barber and Flora van Velzen. The couple had no children.
Elkan had one brother Joseph who also has been killed during the Holocaust.
City Archive of Amsterdam, archive cards of Elisabeth Barber, Elkan Roe and Marianne Barber.