These have been published.
His correspondence with Tobias Lear, for many years his private secretary, are now in the collection of Thomas K.Bixby, a wealthy bibliophile of St.Louis.These also have been published.

The one greatest repository of papers is the Library of Congress.

Furthermore, through the unwearying activities of J.M.Toner, who devoted years to the work, the Library also has authenticated copies of many papers of which it does not possess the originals.
All told, according to Mr.Gaillard Hunt, who has them in charge, the Washington manuscripts in the Library of Congress is the largest collection of papers of one person in the world.

The collection contains about eighteen thousand papers in his own hand, press copies, or drafts in the writing of his secretaries, and many times that number of others.
As yet all except a small part are merely arranged in chronological order, but soon it is to be sumptuously bound in royal purple levant.
The color, after all, is fitting, for he was a King and he reigns still in the hearts of his countrymen.
Benjamin Franklin knew the great men of earth of his time, the princes and kings of blood royal.

Near the close of his life he wrote in his will: "My fine crabtree walking-stick with a gold head, curiously wrought in the form of a cap of Liberty, I give to my friend, and the friend of mankind, General Washington.