From Diary of the American Revolution, Vol II. Compiled by Frank Moore and published in 1859.
October 5.—Died the second instant, at his house at Ring-wood, Robert Erskine, F. R. S., and geographer to the army of the United States, in the forty-sixth year of his age; a man in whom were united the Christian and the gentleman. His integrity and unbounded benevolence have rendered his death a loss to the public, and a subject of sincere regret to all his acquaintances. He made the laws of justice the invariable rule of his conduct, and upon this principle espoused the cause of America, in which he served his country with approbation and universal esteem.1
1 Pennsylvania Packet, October 28.