Thanks, Joan. You are correct. This is the Roy DeYoung I am looking for. I have all of this information from the US censuses, but since the the last census is in 1930, I have no further information. I've hit a dead end.
I've been trying to find out where exactly Anna and John DeYoung (as well as Kate and Leonard) are from, but I can't make out their handwriting on the US military draft registrations, which have been my only source of information on this as of now (my family didn't keep any records at all).
Leonard's says "Otdorub", but I cannot equate that to any actual place. Joseph's says his father is from "Oddorp"
Thanks Kevin ---- Do you know where this family was from in the Netherlands? If not, I may be able to help you.