Keywords: General John Armstrong George Washington letter proposed attack.jpg en Letter from General John Armstrong Sr of the Pennsylvania militia forces to General George Washington expressing Armstrong's opinion of the proposed attack on British forces at Philadelphia November 25 1777 George Washington Papers Series 3f Varick Transcripts The Library of Congress Washington D C http //memory loc gov/mss/mgw/mgw3f/001/136135 jpg John Armstrong Sr 1777-11-25 PD-old-100 Documents related to George Washington History of Pennsylvania American Revolutionary War forces |