When Muriel Carolyn Rice was born on 21 December 1897, in Otisco Valley, Otisco, Onondaga, New York, United States, her father, Frederick Augustus Rice, was 22 and her mother, Elva Ashton, was 19. She married George Worthy Riggall on 3 February 1916. They were the parents of at least 4 sons and 6 daughters. She lived in Spafford, Onondaga, New York, United States in 1930 and Borodino, Spafford, Onondaga, New York, United States in 1940. She died in 1951, at the age of 54, and was buried in Amber Cemetery, Amber, Otisco, Onondaga, New York, United States.