Connie, have you looked at the 1920 census for New York to find your grandmother with her parents (or Uncle?) Have you tried to follow her uncle through the NY city directories, in hopes of discovering a time frame for his death? He may have had children who could help you with information regarding their cousin. Your father would have been 4-5 at the time of the divorce. Most small children can recall older folks who came to visit when they were small....were there older people who could have been the maternal grandparents, does he remember any cousins? Did he get Christmas gifts from anyone after his mother left? These people might be able to help. Often times, a cousin on the father's side may have heard stories as a young child that could help you. Was your father baptised? If so, the entire family (maternal and paternal) may have attended that particular church if they all lived in the same neighborhood. There are still people living who remember when I was baptised, and I was born in 1940. Am I correct in thinking one of the few reasons accepted for divorce in early days in New York was adultery? There may have been more to the story. While it would be nice to start with facts for today and find your grandmother, you may need to really go back further. I would also check the 1910 census to see if her parents are in the census. If she were one of the younger in a family, she might have older brothers and sisters in 1910. Does your father's birth certificate not give the birth date of his parents? What about their marriage license application. If they were married in a church there may be additonal information there. Keep looking and let us know how it all turns out! Gayle [email protected]