I have some more info on my last request: My father-in-law has 1 sister: Jeanne Oldenburg, born on march 24, 1930, married to Mister Van Dort/ Dorst?. Grandpa Hermanus Oldenburg was born on september 13, 1901 and Granny Jannetle Oldenburg- van der Linden was born on februari 11, 1901. They both died, I think, in Rotterdam, Holland, but I have no dates. Anyone???????