Proger, B. B. (2008). McMahon family: Some genealogical notes on the family of William McMahon (ca. 1850- ca. 1884) and Mary Margaret (Kennedy) McMahon (ca. 1852- 1916). of Ennis, County Clare, Ireland, and their descendants in Massachussetts, Rhode Island, and Pennsylvania. King of Prussia, Pa.: Barton B. Proger.

Proger, Barton B. McMahon Family: Some Genealogical Notes On the Family of William McMahon (ca. 1850- Ca. 1884) and Mary Margaret (Kennedy) McMahon (ca. 1852- 1916). of Ennis, County Clare, Ireland, and Their Descendants in Massachussetts, Rhode Island, and Pennsylvania. King of Prussia, Pa.: Barton B. Proger, 2008.

Proger, Barton B. McMahon Family: Some Genealogical Notes On the Family of William McMahon (ca. 1850- Ca. 1884) and Mary Margaret (Kennedy) McMahon (ca. 1852- 1916). of Ennis, County Clare, Ireland, and Their Descendants in Massachussetts, Rhode Island, and Pennsylvania. King of Prussia, Pa.: Barton B. Proger, 2008.