When Polly Harmon was born on 13 October 1790, in Rupert, Bennington, Vermont, United States, her father, Selah Harmon, was 36 and her mother, Rhoda Dewey, was 42. She married Nathan Carr about 1817, in Erie, Pennsylvania, United States. They were the parents of at least 1 son and 1 daughter. She lived in Elk Creek Township, Erie, Pennsylvania, United States in 1850. She died on 28 December 1855, in Erie, Pennsylvania, United States, at the age of 65, and was buried in Platea Cemetery, Platea, Erie, Pennsylvania, United States.