When Margaret Blanche Sullivan was born on 30 May 1885, in Montague, Muskegon, Michigan, United States, her father, Patrick O'Sullivan, was 49 and her mother, Mary Sullivan, was 35. She married James Claude Wheeler on 28 May 1903. They were the parents of at least 3 sons and 2 daughters. She lived in Roger Mills, Oklahoma Territory, United States in 1900 and Elk Township, Beckham, Oklahoma, United States in 1920. She died on 10 February 1921, at the age of 35, and was buried in Ural Cemetery, Beckham, Oklahoma, United States.