NGSQ 105 (Jun 2017) includes an article by Allen R. Peterson, "Samuel Williamson's Disconnected Origin and Emigration to England," in which he identifies the family of Samuel, including a brother Hugh.
A key piece of evidence is the 1757 will of John Williamson, clothier, of Cumberland Co., Pennsylvania:
- wife Mary...
- eldest son Hugh...
- son John...
- daughter Rachel...
- daughters Margit and Mary...
- minor sons, David and Samuel...
Combine this with Hugh's own 1818 will, which includes:
- brother Samuel Williamson of Congleton in Cheshire GreatBritain... (and naming Samuel's daughters Margaret and Maria)
The article also references an 1821 biography of Hugh, which claims Hugh was born near Octorara Creek, West Nottingham Township, Lancaster Co., PA 5 Dec 1735. The biography describes Hugh's father John Williamson as an industrious clothier in the city of Dublin [Ireland] who came to America and settled in Chester Co., A about 2740; it goes on to say that Hugh's mother, Mary was a native of Derry Ireland and came to America at age three with her father George Davison.
Therefore, I think we have enough evidence to add parents to Hugh's profile, namely:
John Williamson, b abt 1710 possibly Dublin, Ireland ; d Cumberland Co., PA between 21 May 1757 (date of will) and 20 July 1757 (when will was proved); he married about 1731:
Mary Davison, b abt 1720 possibly Derry, Ireland, daughter of George Davison; d. after 1757 (alive when husband's will proven).
Siblings (listed in will, above) could also be added.