When Ernest Harvey Mullins was born on 14 May 1896, in Alexander, Erath, Texas, United States, his father, William Henry Mullins, was 29 and his mother, Sarah Perthenia Adkisson, was 27. He married Mittie Nine Swanson on 27 June 1915, in Comanche, Oklahoma, United States. They were the parents of at least 3 daughters. He lived in Justice Precinct 3, Erath, Texas, United States in 1900 and Justice Precinct 5, Erath, Texas, United States in 1910. He died on 27 March 1960, in Olney, Young, Texas, United States, at the age of 63, and was buried in Duncan Municipal Cemetery, Duncan, Stephens, Oklahoma, United States.