Joseph Velleman was a son of Levie Velleman and Jane Spier. He married in Amsterdam on 3 Februrary 1915 to Fanny Manheim, who survived the Holocaust. The couple had three daughters: Louise, Marianne and Clara who also survived the war.
City Archive of Amsterdam, archive card of Joseph Velleman and website www.wiewaswie.nl.
Joseph Velleman had two brothers and a sister.
Addition of a visitor of the website