George Washington to John Hancock, 18–19 April 1777George Washington to Major General William Heath, 18–19 April 1777General Orders, 19 April 1777Major General Horatio Gates to George Washington, 19 April 1777George Washington to Colonel Richard Gridley, 19 April 1777George Washington to Brigadier General Nathaniel Heard, 19 April 1777Thomas Johnson to George Washington, 19 April 1777George Washington to Major General Benjamin Lincoln, 19 April 1777George Washington to Brigadier General Samuel Holden Parsons, 19 April 1777Pennsylvania Board of War to George Washington, 19–21 April 1777George Washington to Colonel Elisha Sheldon, 19 April 1777George Washington to Richard Smith, 19 April 1777George Washington to Francis Wade, 19 April 1777 [letter not found] 