Gabriel Thomas, An Historical and Geographical Account of the Province and Country of Pensilvania and West-New-Jersey in America, (London: A. Baldwin, 1696), p. 51.[1]
Thompson Westcott, "Penn's Mansion, Letitia Court,"The Official Guide Book to Philadelphia, (Philadelphia: Porter & Coates, 1875), pp. 321-22.
Thompson Westcott, "Penn's Cottage,"The Historic Mansions and Buildings of Philadelphia, (Philadelphia: Porter & Coates, 1877), p. 14.
Joseph Jackson, Market Street, Philadelphia; The Most Historic Highway in America, (Philadelphia: The Public Ledger Company, 1914 ), p. 17.[2]
Fiske Kimball, Domestic Architecture of the American Colonies and of the Early Republic, (New York: Charles Scribner's Sons, 1922), pp. 41, 48, 265, 289.[3]
"Letitia Street House," Preservation Matters (newsletter), Winter 2010, (PDF), Preservation Alliance of Greater Philadelphia.
psu.edu
journals.psu.edu
David Glassberg, "Public Ritual and Cultural Hierarchy, Philadelphia's Civic Celebrations at the Turn of the Twentieth Century," The Pennsylvania Magazine of History and Biography, vol. 107, no. 3 (July 1983), pp. 426-28.(PDF)
