Sweetser, M. F. 1. (1874). The middle states: A handbook for travellers : a guide to the chief cities and popular resorts of the middle states, and to their scenery and historic attractions, with the northern frontier from Niagara Falls to Montreal, also, Baltimore, Washington, and northern Virginia. Boston: J.R. Osgood and Co..

Sweetser, M. F. 1848-1897. The Middle States: A Handbook for Travellers : A Guide to the Chief Cities and Popular Resorts of the Middle States, and to Their Scenery and Historic Attractions, With the Northern Frontier From Niagara Falls to Montreal, Also, Baltimore, Washington, and Northern Virginia. Boston: J.R. Osgood and Co., 1874.

Sweetser, M. F. 1848-1897. The Middle States: A Handbook for Travellers : A Guide to the Chief Cities and Popular Resorts of the Middle States, and to Their Scenery and Historic Attractions, With the Northern Frontier From Niagara Falls to Montreal, Also, Baltimore, Washington, and Northern Virginia. Boston: J.R. Osgood and Co., 1874.