Liepman Bonavang was a son of Nathan Bonavang and Roosje Velleman. He married 5 October 1921`in Rotterdam to Rebecca Salomon, a daughter of Jacobus Salomon and Saartje van Hachgenberg. The couple had three children: Nathan, Jacobus and Isaac.
City Archive of Rotterdam, index marriages, family registration card of Liepman Bonavang and an addition of a visitor of the website.