When Harriett Everette Copeland was born on 16 September 1868, in Logan, Illinois, United States, her father, John J Copeland, was 26 and her mother, Mary Fletcher Wilmot, was 21. She married George Washington Allen on 1 February 1887, in Shelby, Iowa, United States. They were the parents of at least 2 sons and 3 daughters. She lived in Lincoln Township, Adams, Iowa, United States in 1900 and Tavern Township, Pulaski, Missouri, United States in 1920. She died on 15 November 1947, in Sheridan, Sheridan, Wyoming, United States, at the age of 79, and was buried in Sheridan, Sheridan, Wyoming, United States.