When George Milner was born on 30 August 1851, in Highland, Ohio, United States, his father, John Milner, was 36 and his mother, Elizabeth Susan Kinzer, was 34. He married Elizabeth Julianna “Lizzie” Smithgall on 1 December 1881, in Highland, Ohio, United States. They were the parents of at least 2 sons and 2 daughters. He lived in Ohio, United States in 1870 and Fairfield MM, Highland, Ohio, United States in 1880. He died on 4 March 1915, in Columbus, Franklin, Ohio, United States, at the age of 63, and was buried in Bridges, Highland, Ohio, United States.