Hi! My Grandfather was Olaf Leeper. My father was Donald David Leeper, he was killed in a military plane crash in March 1956. We were in San Diego Ca at the time. I too have been trying to find information on my dad's family, we lost any contact after his death. I do remember my Uncle Jean comming to Oklahoma when we were living there. My mother remarried an Air Force man. My mother Elizabeth and dad Donald had 3 children, David, Theresa and me Deborah (Debbie).