When Myrtle Isabelle Fretter Fox was born on 12 December 1898, in Coldwater, Branch, Michigan, United States, her father, Emanuel James Fretter, was 26 and her mother, Amanda Roush Fretter, was 19. She married Robert Theodore Fox on 18 February 1920, in Fremont Township, Saginaw, Michigan, United States. They were the parents of at least 1 daughter. She lived in Michigan, United States in 1966 and Saginaw, Saginaw, Michigan, United States in 1989. She died on 8 October 1989, in Saginaw, Michigan, United States, at the age of 90, and was buried in East Lawn Memorial Gardens, Saginaw, Michigan, United States.