Abstract Seven letters, in French, June 10-July 14, 1763, written by Capt. George Etherington during the period of his captivity at L'Arbre Croche to Charles Langlade at Fort Michilimackinac.,Correspondence concerns the assignment of command of the fort to Langlade and instructions for its operation, the ransom of captive British soldiers, English traders held at the fort, wampum for the Ojibwa, and the assistance of the Ottawa chief, La Fourche.