^Glenn, Thomas A. Merion in the Welsh tract: With sketches of the townships of Haverford and Radnor. Historical and genealogical collections concerning the Welsh barony in the province of Pennsylvania, settled by the Cymric Quakers in 1682. Genealogical Publishing Com, 1896, p. 281.
^Nathan Zipfel,[1],Chapter IX : Delaware Under William Penn, September 29, 2011. نسخة محفوظة 2016-03-03 في Wayback Machine
^The Shelley Collection: Howard Shelley Papers. Villanova University.
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