Jan Martens (son of Egbert Martens and Pieterke Mulder)7 was born 22 June 1924 in tZandt (Gron.) The Netherlands7.He married Dina Beukema on 12 July 1957 in Chicago (Il) U.S.A.7. More About Jan Martens and Dina Beukema: Marriage: 12 July 1957, Chicago (Il) U.S.A..7