When Lorraine A. Morrill was born in 1850, in Vermont, United States, her father, Joseph Ames Morrill, was 39 and her mother, Julia Ann Everett, was 31. She married Orson Demetrius Seymour in 1871, in Little Sioux, Harrison, Iowa, United States. They were the parents of at least 2 sons and 3 daughters. She lived in Little Sioux, Harrison, Iowa, United States in 1880 and Little Sioux Township, Harrison, Iowa, United States in 1900. She died on 20 January 1923, in Harrison, Iowa, United States, at the age of 73, and was buried in Little Sioux, Harrison, Iowa, United States.