Note 23 — Chapter II · The First Military Expedition.
Reading edition
“As soon as Washington returned with the letter of St. Pierre, Governor Dinwiddie wrote to the Board of Trade, stating that the French were building another fort at Venango, and that, in March, twelve or fifteen hundred men would be ready to descend the Alleghany river with their Indian allies, for which purpose three hundred canoes had been collected; and that Logstown was then to be made head-quarters, while forts were built in various other positions, and the whole country occupied.”—Annals of the West, p, 84.