I am looking for information on Frederik Mulder, born on Jan. 13, 1926 in Wedde, Groningen, The Netherlands. He died in Hinton, AB in 2001. He married my grandmother, Maria Vande Groep on June 25, 1947. I believe they were married in Leiden. Frederik is my maternal grandfather. We have tried to talk to his family but they refuse to tell us anything. Can anyone help?