When Frederick Brackett was born on 4 March 1816, in Otisfield, Cumberland, Maine, United States, his father, Nathaniel Brackett, was 44 and his mother, Elizabeth Lewis, was 43. He married Mary P. Knight on 2 June 1840, in Maine, United States. They were the parents of at least 1 daughter. He lived in Gorham, Cumberland, Maine, United States in 1814. He died on 20 September 1896, at the age of 80, and was buried in Otisfield, Oxford, Maine, United States.