1776, year of illusions / by Thomas Fleming. New York: W.W. Norton & Co., Inc., 1975
Main Library, E232.F57 1975
From the Chapter, Revolutions Break Hearts:

For thousands of people, the Declaration of Independence was the beginning of a long personal anguish. It forced them to chose between two sovereign nations. John Morton, an old friend of Benjamin Franklin and the Pennsylvania delegate who had provided the vote that swung the state into the independence column, summed up the anguish in a letter, "The contest is horrid. Parents against children, children against parents."

Perhaps the most poignant personal story involved a name that loomed larger than any other American's, even Washington, during 1776--Benjamin Franklin. When John Morton lamented that the contest was turning fathers against sons and sons against fathers, he was thinking of Franklin and his son William, the Royal Governor of New Jersey, by that time under arrest in Connecticut as an enemy of his country while his father voted for independence.