John Francis Hamtramck
|注意：||Not in Brun.
Pen and ink map showing Hamtramck's plan for establishing a line of three blockhouses along the survey base line to protect communications between the Ohio River and the camp of his main body of troops.
Drawn into his letter to Harmar of September 17.
|描述：||1 ms. map ; 12 x 20 cm|