Willem Agstteribbe, usually known as Wim, was a son of Liepman Agstteribbe and Sara Schaap. He married Vogelina Snijders in Amsterdam on 30 April 1924, who was known as Lien, a daughter of Joseph Snijders and Klaartje Bosboom. The couple had two children: Selma in 1927 and Leo in 1934.
Willem was a commercial traveler in fancy goods and worked for Messrs Diorgenta at Vondelstraat 11 in Amsterdam, …