Isaac van Kreeveld was a son of Joseph Isaac van Kreeveld and Leentje Nikkelsberg. He married 6 November 1907 in Amsterdam to Rachel Schelvis, daughter of Mozes Schelvis and Marianne Wurms, but from whom he divorced on 18 December 1922.
The couple had one daughter in 1908: Lena.
Isaac married again in Amsterdam on 6 March 1923 to Kaatje Tokkie, daughter of Machiel Tokkie and Bilha Scharis. From this marriage one daughter was born in 1930: Betsy.
City Archive of Amsterdam, archive card of Isaac van Kreeveld, Rachel Schelvis and website www.wiewaswie.nl.