I agree with what your saying as to Mary and William being David's parents and if that is true, then trying to find out who his parents would be the next step. Just to let you know, George Washington and Olga Lowe did make a trip out to CA to take care of David before he died and the children have told me that much also before GW & Olga Lowe's siblings died including my own dad. They had several children there and then returned by covered wagon to Minnesota. I did actually find the homestead in MN where they lived some of the time and had a large reunion and took some family there to see it also. It's been an adventure - thanks again for all of your help and if you could, would you post the link to the email address for the family you mentioned would be a good email option? I hope this will work for you and again thanks for all you did for me at this point.