When Sarah Amanda Swank was born on 23 November 1851, in Unionville, Appanoose, Iowa, United States, her father, William Aaron Swank, was 32 and her mother, Elizabeth Etnire, was 27. She married John Swank Cozad on 2 April 1876. They were the parents of at least 1 son and 1 daughter. She lived in Udell, Appanoose, Iowa, United States for about 5 years and Washington Township, Appanoose, Iowa, United States for about 10 years. She died on 5 October 1926, in Moulton, Appanoose, Iowa, United States, at the age of 74, and was buried in Dale Cemetery, Pleasanton, Decatur, Iowa, United States.