Debora Peeper was a daughter of Meijer Jesaias Peeper and Marianne Halverstad. She married, aged 23, on 15 July 1908 in Amsterdam to Levie Croese, aged 26, a son of Samuel Croese and Sara Pinto. The couple had two children: Meijer en Marianne.

City Archive of Amsterdam, archive card of Levie Croese and website www.wiewaswie.nl.