When Parnell Packard was born in 1726, in Bridgewater, Plymouth, Massachusetts Bay Colony, British Colonial America, her father, Joseph Packard, was 27 and her mother, Susanna Mitchell, was 23. She married David Johnson Jr. on 2 October 1751, in Bridgewater, Plymouth, Massachusetts Bay Colony, British Colonial America. They were the parents of at least 6 sons and 1 daughter. She died on 24 December 1804, in Wardsboro, Windham, Vermont, United States, at the age of 78, and was buried in Wardsboro, Windham, Vermont, United States.