When Mabel Theodore Thoe was born on 16 November 1888, in Wisconsin, United States, her father, John Johnson Thoe, was 39 and her mother, Martine Thompson, was 34. She married Carl August Larson on 2 April 1917, in Chicago, Cook, Illinois, United States. They were the parents of at least 1 son and 1 daughter. She died on 11 April 1980, in Los Angeles, California, United States, at the age of 91.