A few days after signing the Declaration of Independence, he left Congress to serve as colonel in command of the Fourth Battalion of the ''Pennsylvania Associators'',<ref>[https://books.google.com/books?id=bjpeYo0WY3wC&pg=PA98 Register of Members and Miscellaneous Statistical Information Concerning the Pennsylvania Society of Sons of the Revolution]</ref> to assist [[George Washington]] at Perth Amboy, New Jersey. The ''Associators'' were militia troops assembled by [[Benjamin Franklin]] in 1747. McKean served as President of Congress beginning in 1781, after [[Samuel Huntington (signer)|Samuel Huntington]] resigned for health reasons.<ref>[https://books.google.com/books?id=iXNkR7v0pigC&pg=PA7269 Congressional Record: Proceedings and Debates of the Congress]</ref> After the Surrender of Cornwallis at the [[Battle of Yorktown]], McKean worked to pass resolutions thanking the Continental Army for their service and bravery.<ref>[https://books.google.com/books?id=WcsABAAAQBAJ&pg=PA264 Victory at Yorktown: The Campaign That Won the Revolution]</ref><ref>[https://books.google.com/books?id=rWwFAAAAQAAJ&pg=PA158 The Yorktown Campaign and the Surrender of Cornwallis, 1781]</ref> | A few days after signing the Declaration of Independence, he left Congress to serve as colonel in command of the Fourth Battalion of the ''Pennsylvania Associators'',<ref>[https://books.google.com/books?id=bjpeYo0WY3wC&pg=PA98 Register of Members and Miscellaneous Statistical Information Concerning the Pennsylvania Society of Sons of the Revolution]</ref> to assist [[George Washington]] at Perth Amboy, New Jersey. The ''Associators'' were militia troops assembled by [[Benjamin Franklin]] in 1747. McKean served as President of Congress beginning in 1781, after [[Samuel Huntington (signer)|Samuel Huntington]] resigned for health reasons.<ref>[https://books.google.com/books?id=iXNkR7v0pigC&pg=PA7269 Congressional Record: Proceedings and Debates of the Congress]</ref> After the Surrender of Cornwallis at the [[Battle of Yorktown]], McKean worked to pass resolutions thanking the Continental Army for their service and bravery.<ref>[https://books.google.com/books?id=WcsABAAAQBAJ&pg=PA264 Victory at Yorktown: The Campaign That Won the Revolution]</ref><ref>[https://books.google.com/books?id=rWwFAAAAQAAJ&pg=PA158 The Yorktown Campaign and the Surrender of Cornwallis, 1781]</ref> |