I'm trying to find information on my great-grandmother. She was Mary T. (Mamie) Cosgrove O'Hara, married to Joseph A. O'Hara, physician. Her family knew her as Big Mama. Last known address was on St. Charles Avenue in New Orleans. Her children were Willie, a New Orleans Judge, Ruth, my grandmother and Joseph, who died as a child. Does anyone have any links with this name?