In his private diary entries of 1759, Sir William Johnson provided information about the fall of Fort Rouillé, also known as Fort Toronto.

In 1759, British forces had laid siege to Fort Niagara. Initially second-in-command, Johnson was in charge after the death of Brigadier-General John Prideaux, and on July 25th, the French garrison at Fort Niagara surrendered.

On July 28th, Johnson would write the following:

The evening of the 27th, I sent 3 whale boats with a party of above 30 men to reconnoitre Fort Toronto, and on their return, propose to send to destroy it.

And on the 30th:

At night Lieutenant Francis returned from Toronto, and reported that the enemy had burned and abandoned that post, and destroyed many things which they could not take along, viz. working utensils, arms, &c.

On August 22nd, Johnson described a meeting with “the Chippaway sachem, Tequakareigh,” and other members of the Six Nations. At that meeting, trade and peaceful relations between the English and Six Nations were proposed, as long as relations with the French were broken off. Tequakareigh…

… also desired I would send some person to the Mississagay town, near where Toronto stood, to hear what he should say to that nation…

In 1759, Sir William Johnson had described in his diary the initial discussions of peace and trade in the region between the British and Six Nations.

Two years later, on July 25th, 1761, at Fort Niagara, Johnson wrote the following in his diary:

…Captain Butler from Toronto arrived here, and gave a very good account of the behavior of the Mississagays, Chippawas, Michilimakinacs, &c., during their residence there, and by their speeches, and everything else, seemed to be very hearty in our interest. He is to set off from here on the morrow.

Then, on August 3rd, he wrote:

Captain Fonda arrived here from Toronto, where he said the trade was over for this season; and that they had a great deal of goods yet on hand, which he offered to sell at prime cost, but could not dispose of them. He says the Indians all behaved extremely well who came there to trade; that they sell gunpowder at a bear skin for a pound.

And on August 5th:

Captain Fonda came to acquaint me he was going to Toronto, as he could not dispose of his cargo here…