Herbert Plaat, a son of Louis Plaat and Rosa Marchand, married 13 July 1942 in Amsterdam Friederika Stiel from Eschweiler, a daughter of Leo Stiel and Regina Marchand. Since he, his parents and his brother Erwin arrived in March 1934 in The Netherlands, he resideded at the address Amstel 296 III (3rd floor) in Amsterdam.
Since 7 June 1941, Friederika Stiel resided alreay at the address of Herbert and his parents: Amstel 296 III.
City Archive of Amsterdam, archive cards of Herbert Plaat and Friederika Stiel.