When Mary Ann Neely was born on 14 December 1849, in Marietta, Cobb, Georgia, United States, her father, William Adrian Neely, was 49 and her mother, Mary Polly Parks, was 34. She married William Milton Wagley on 6 April 1871, in Annona, Red River, Texas, United States. They were the parents of at least 3 sons and 7 daughters. She lived in Justice Precinct 5, Stephens, Texas, United States in 1880 and Justice Precinct 5, Wise, Texas, United States for about 10 years. She died on 11 July 1917, in Boyd, Wise, Texas, United States, at the age of 67, and was buried in Wise, Texas, United States.