This information clarifies the identify of John Mattingly of Mount Savage, Maryland as he is referenced in History of St. Patrick Catholic Church in Mount Savage, Maryland, compiled by Nancy E. Thoerig and published by the church in 2004.Lannie Dietle and Michael McKenzie report in their book In Search of the Turkey Foot Road, edited by Nancy E. Thoerig and a 2011 publication of the Mount Savage Historical Society, "Although we are not students of Mattingly genealogy, it seems likely that the John Mattingly who is cited on page 48 of the 1909 "The Catholic red book of Western Maryland" as being the first Catholic settler in the area at the time of the French and Indian War may not be the same John Mattingly who married Onea Arnold in 1797, and may not be the same John Mattingly who patented lots 3373 and 3374 (the present-day Amanda Paul farm) in 1819."
Dietle and McKenzie expound, "Although Mattingly genealogy is peripheral to this study, we note that Thomas A. Stobie of Overland Park Kansas has written on his genealogy website that John Mattingly, born
1773, was the husband of Onea Honor (Arnold) Mattingly who died in 1823, and was the son of Henry Mattingly, born 1751. According to the 1787 Deakins‘ list, a Henry Mattingly owned lots 3366 and 3367, which were along the present-day Bald Knob Road.
"Barry Thoerig reports that a William R. Mattingly had at one time posted information on the RootsWeb website that indicated that John Mattingly was born June 1, 1773 in Allegany County Maryland, and was married to Onea Honor Arnold who was born March 3, 1776 in the same county. William R. Mattingly also reported that John and Onea had a son Sylvester born on December 17, 1817. (The Maryland Historical Trust Inventory of Historic Properties) indicates that Francis and Sylvester Mattingly inherited the present-day Amanda Paul farm from John Mattingly in 1845, and then Sylvester bought out Francis on September 26, 1846. This information on Sylvester Mattingly indicates that William R. Mattingly was researching the same John Mattingly who once owned the present-day Amanda Paul farm. Sylvester and his wife Ellen are buried in the Saint Patrick‘s Catholic Church Cemetery."
The Turkey Foot Road followed, generally, present-day Maryland State Route 36 from the Narrows in Cumberland to Barrelville, and then through Arnold's Settlement (early Mount Savage), on its way from Fort Cumberland to present-day Pittsburgh, Pennsylvannia, and on to Pickawillany (present-day Piqua, Ohio).