Alvord, Clarence W. The Mississippi Valley in British Politics. 2 vols. Cleveland: Arthur H.Clark, 1917.
Alvord, Clarence W., and Clarence E.Carter, eds. The Critical Period, 1763–1765, vol. 10. Illinois Historical Collections. Springfield: Illinois State Historical Library, 1915.
Askin Papers in the Burton Historical Collections of the Detroit Public Library.
Baynton, Wharton & Morgan Papers. Microfilm. 10 Rolls. Original in Pennsylvania Historical Commission.
Byars, William V., ed. B[ernard] and M.Gratz. Jefferson City, MO: Hugh Stevens Printing, 1916.
Chevalier, John, and Peter, Daybook. Pennsylvania Historical Society.
Colden Papers. New York Historical Society Collections. 1876.
Dunham, Douglas. “The French Element in the American Fur Trade.” Ph.D. Dis., University of Michigan, 1950. Microfilm in State Historical Society of Wisconsin.
Dunn, Walter S., Jr. The New Imperial Economy. New York: Praeger, 2001.
Dunn, Walter S., Jr. “Western Commerce, 1760–1774.” Ph.D. Dis., University of Wisconsin, 1971.
Edgar, William. William Edgar Manuscripts, 1760–1769, vol. 15 in the Burton Historical Collection. Detroit Public Library.
Fleming, R.H. “Phyn, Ellice and Co. of Schenectady.” Contributions to Canadian Economics, 4 (1932).
Gratz, Michael. Letter Book, Etting Collection. Pennsylvania Historical Society.
Harrington, Virginia D. The New York Merchant on the Eve of the Revolution. New York: Columbia University Press, 1935.
Hazard, Samuel, ed. Pennsylvania Archives, 1st Series, 12 vols. Philadelphia: