21George Washington to Brigadier General Louis Le Bèque Du Portail, 27 July 1779 (Hamilton Papers)
West Point, July 27, 1779. Discusses appointment of officers in Company of Sappers and Miners. Df , in writing of H, George Washington Papers, Library of Congress.
22George Washington to Brigadier General Louis Le Bèque Du Portail, 17 April 1779 (Hamilton Papers)
Middlebrook [ New Jersey ] April 17, 1779 . Is pleased that Supreme Executive Council of Pennsylvania has approved Du Portail’s plans. Df , in writing of H, George Washington Papers, Library of Congress.
23George Washington to Brigadier General Louis Le Bèque Du Portail, 9 April 1779 (Hamilton Papers)
Middlebrook [ New Jersey ] April 9, 1779 . Asks Du Portail to send an engineer to Wyoming, Pennsylvania. Df , in writing of H, George Washington Papers, Library of Congress.
24To Alexander Hamilton from Brigadier General Louis Le Bèque Du Portail, 20 March 1779 (Hamilton Papers)
Philadelphia, March 20, 1779. Cannot obtain boats and other equipment needed to make a survey of Delaware River. ALS , George Washington Papers, Library of Congress. This letter is in French; translation by H, George Washington Papers, Library of Congress. Du Portail, brigadier general, Corps of Engineers, was sent by Washington to Philadelphia to make a survey of the Delaware River ( GW John...
25To Alexander Hamilton from Brigadier General Louis Le Beque Du Portail, [July–November 1778] (Hamilton Papers)
[ July–November, 1778 .] Asks Hamilton to assist the Chevalier de Villefranche. ALS , Hamilton Papers, Library of Congress. This letter is in French. In JCHW John C. Hamilton, ed., The Works of Alexander Hamilton (New York, 1851). , I, 198 this letter is dated 1780. This very vague undated letter discusses a dispute in which the Chevalier de Villefranche was involved. Du Portail thought that...
26George Washington to Brigadier General Louis Le Beque Du Portail, 24 November 1778 (Hamilton Papers)
[ Fredericksburg, New York ] November 24, 1778 . Instructs Du Portail to send request for cannon for West Point to Congress. Df , in writing of H, George Washington Papers, Library of Congress.
27George Washington to Brigadier General Louis Le Beque Du Portail, 31 October 1778 (Hamilton Papers)
Fredericksburg [ New York ] October 31, 1778 . Acknowledges receipt of plan for fortification of Boston. Has forwarded this information to Major General Horatio Gates who will take command at Boston. Df , in writing of H, George Washington Papers, Library of Congress.
28George Washington to Brigadier General Louis Le Beque Du Portail, 27 August 1778 (Hamilton Papers)
White Plains [ New York ] August 27, 1778 . Instructs Du Portail to examine fortifications of Highlands and to execute instructions given him relative to the plan for defense of Delaware River and Philadelphia. Df , in writing of H, George Washington Papers, Library of Congress.
29George Washington to Brigadier General Louis Le Beque Du Portail, 30 June 1778 (Hamilton Papers)
Englishtown [ New Jersey ] June 30, 1778 . Orders Du Portail to Philadelphia to study city’s defenses. Df , in writing of H, George Washington Papers, Library of Congress.