11George Washington to Comte d’Estaing, 31 October 1778 (Hamilton Papers)
...seaport towns should be fortified. Is awaiting arrival of John Holker...., George Washington...
12From George Washington to Vice Admiral d’Estaing, 31 October 1778 (Washington Papers)
...impatiently expect the arrival of Mr Holker to confer with him on the important objects with...
13To George Washington from Jean Holker, 6 November 1778 (Washington Papers)
For the “important information” to be communicated by Holker, see ...Holker left Boston at the...
14To George Washington from Major General John Sullivan, 10 November 1778 (Washington Papers)
Jean Holker to GW, 6 Nov.
15From George Washington to Brigadier General Charles Scott, 14 November 1778 (Washington Papers)
Jean Holker to GW, 6 Nov., n.2
16To George Washington from Major General Horatio Gates, 23 November 1778 (Washington Papers)
...concerted a plan with Monsieur Holker for Obtaining the best intelligence possible from Nova-...
17To George Washington from Major General William Heath, 1 December 1778 (Washington Papers)
...will be handed to you by the Hon. Mr Holker agent to the Royal Marine and Consul of France...
18To George Washington from Major General Horatio Gates, 27 December 1778 (Washington Papers)
...him back again, with the Letter from Monsr Holker, One from the Marquis de la Fayette,...
19From George Washington to Lieutenant Colonel Caleb North, 12 February 1779 (Washington Papers)
The French consul at Philadelphia was Jean Holker. For the sale of this vessel, which the French...
20To George Washington from Jean Holker, 6 March 1779 (Washington Papers)
...to Present my Respects By this occasion, to Mrs Washington, & to the other Lady’s at head...