When Eunice Mae Cain was born on 20 February 1898, in Fort Smith, Sebastian, Arkansas, United States, her father, Robert Allen Cain, was 32 and her mother, Ida Mahalia West, was 20. She married Joseph Franklin Allen on 1 August 1928, in Pontotoc, Oklahoma, United States. They were the parents of at least 1 son. She lived in Hughes, Oklahoma, United States in 1935 and Dustin, Hughes, Oklahoma, United States in 1940. She died on 12 January 1968, in Wetumka, Hughes, Oklahoma, United States, at the age of 69, and was buried in Atwood Cemetery, Hughes, Oklahoma, United States.