Philip Witteboon was a son of Meijer Witteboon and Eva Schellevis. He married 29 July 1936 in Amsterdam to Henriette Blits, daughter of Nathan Blits and Esther Halberstadt.
The couple had only one son: Nathan.
City Archive of Amsterdam, archive cards of Philip Witteboon and Henriette Blits.
In addition, a Jokos file (number 34478) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.