When Frederick Neet was born in 1802, in Neatsville, Adair, Kentucky, United States, his father, John Neat, was 25 and his mother, Asuneth Pelley, was 20. He married Sarah Allen on 3 November 1819, in Neatsville, Adair, Kentucky, United States. They were the parents of at least 2 sons and 2 daughters. He died in January 1845, in Macon, Macon, Missouri, United States, at the age of 43.