When Dorcas Hamblin was born on 1 December 1805, in Sandwich, Barnstable, Massachusetts, United States, her father, Ruben Hamlin, was 24 and her mother, Lydia Fish, was 21. She married Lemuel Hamblin Eldredge on 16 May 1830. They were the parents of at least 1 daughter. She lived in Falmouth, Barnstable, Massachusetts, United States for about 5 years and Massachusetts, United States in 1868. She died on 18 February 1868, in Woods Hole, Falmouth, Barnstable, Massachusetts, United States, at the age of 62.