See the unformatted 2006 official National Bridge Inventory website for Pennsylvania: «PA06.txt». Federal Highway Administration. 2006. Consultado el 11 de enero de 2011.
fmmutual.com
«About our logo». Farmers & Mechanics Mutual Insurance Company. Archivado desde el original el 11 de marzo de 2011. Consultado el 15 de junio de 2008.
Meginness, John Franklin (1892). «Chapter XIX. Internal Improvements.». History of Lycoming County, Pennsylvania: including its aboriginal history; the colonial and revolutionary periods; early settlement and subsequent growth; organization and civil administration; the legal and medical professions; internal improvement; past and present history of Williamsport; manufacturing and lumber interests; religious, educational, and social development; geology and agriculture; military record; sketches of boroughs, townships, and villages; portraits and biographies of pioneers and representative citizens, etc. etc. (1st edición). Chicago, IL: Brown, Runk & Co. ISBN0-7884-0428-8. Consultado el 16 de marzo de 2006.Note: ISBN refers to the Heritage Books July 1996 reprint. URL is to a scan of the 1892 version with some OCR typos.