I found my mother. I had not been able to find my mother before she married my father. Since she was born in 1917, one day I just decided to search the 1920 census page by page to see if she was there. I knew her father died in 1919 so I was not going to find him there. I could not find her mother in 1920 nor 1930. In 1940, my mother had already married my father. I found her in 1920 listed with her grandmother. Her name was misspelled. And her grandmother was listed with her maiden name which I was not sure of. I think I did not leave any stone unturned when I found her. This is something I won't forget: search the census page by page if you have to.