When Mabel Alberta Edmunds was born on 24 February 1899, in New York, United States, her father, James Polk Edmunds II, was 25 and her mother, Grace May Fox, was 22. She married Harold Dewey Mcnall on 21 October 1922, in Monroe, New York, United States. They were the parents of at least 1 son. She lived in Brighton, Monroe, New York, United States for about 40 years. She died in October 1985, in Monroe, New York, United States, at the age of 86, and was buried in Henrietta, Monroe, New York, United States.