Whitehead, C. (1898). The capture of Fort Duquesne: An historical discourse before the Society of colonial wars in the commonwealth of Pennsylvania, delivered in Christ church, Philadelphia, on the one hundred and fortieth anniversary of the capture of the fort, Sunday, November twenty-seventh, 1898, upon the occasion of the unveiling of a memorial tablet of Brigadier-General John Forbes, commander of His Majesty's troops in the southern provinces of North America. [Philadelphia: G.H. Buchanan and Company.

Whitehead, Cortlandt. The Capture of Fort Duquesne: An Historical Discourse Before the Society of Colonial Wars in the Commonwealth of Pennsylvania, Delivered in Christ Church, Philadelphia, On the One Hundred and Fortieth Anniversary of the Capture of the Fort, Sunday, November Twenty-seventh, 1898, Upon the Occasion of the Unveiling of a Memorial Tablet of Brigadier-General John Forbes, Commander of His Majesty's Troops in the Southern Provinces of North America. [Philadelphia: G.H. Buchanan and Company, 1898.

Whitehead, Cortlandt. The Capture of Fort Duquesne: An Historical Discourse Before the Society of Colonial Wars in the Commonwealth of Pennsylvania, Delivered in Christ Church, Philadelphia, On the One Hundred and Fortieth Anniversary of the Capture of the Fort, Sunday, November Twenty-seventh, 1898, Upon the Occasion of the Unveiling of a Memorial Tablet of Brigadier-General John Forbes, Commander of His Majesty's Troops in the Southern Provinces of North America. [Philadelphia: G.H. Buchanan and Company, 1898.