New York, 1911.

An exhaustive work of research, with full accounts of Croghan and Findlay.
See also Croghan's and Johnson's correspondence in vol.VII, New York Colonial Records.
James Adair, "The History of the American Indians," etc.

London, 1775.
The personal record of a trader who was one of the earliest explorers of the Alleghanies and of the Mississippi region east of the river; a many-sided work, intensely interesting.
C.W.Alvord, "The Genesis of the Proclamation of 1763." Reprinted from Canadian Archives Report, 1906.

A new and authoritative interpretation.
In this connection see also the correspondence between Sir William Johnson and the Lords of Trade in vol.VII of New York Colonial Records.
Justin Winsor, "The Mississippi Basin.

The Struggle in America between England and France." Cambridge, 1895.