Schuyler Hamilton,
History of the National Flag of the United States of America
“ What do you think of a flag with a white ground, a tree in the middle, the motto, 'Appeal to Heaven?' This is the flag of our floating batteries." To which Colonels Glover and Moylan replied, October 21, 1775: "That as Broughton and Selman, who sailed that morning, had none but their old colors, they had appointed the signal by which they could be known by their friends to be 'the ensign up to the maintopping lift." ”
