quote is from:

Valley Forge: Making and Remaking a National Symbol

(Treese)
Potts' forge on the Valley Creek was burnt by the British at the outset of the Revoultion but: "Industry also rapidly returned to Valley Forge. While the war continued, the American government established a musket factory there. A British raiding party destroyed the old forges, but Isaac and David Potts together with their relative William Dewees soon built a new forge and dam and began operations at a rolling and slitting mill."

additional bio at findagrave

read also: https://www.ushistory.org/valleyforge/youasked/010.htm
in part:
"Potts, Hackley & Potts was the firm operating the forge by 1767 — consisting of Joseph and David Potts (John Potts' sons) and their cousin, Thomas Hackley. On May 10, 1768 the forge was conveyed solely to Joseph. Isaac Potts, another son, became owner of the gristmill by 1773, and soon after built his stone house along Valley Creek near the Schuylkill River. David Potts built a summer residence himself nearby — he lived in Philadelphia — but this house was acquired by William Dewees, his brother-in-law, and Isaac Potts and William Dewees entered into a partnership owning the forge."

See also
JOURNAL ARTICLE OPEN ACCESS
The Old Iron Forge: "Valley Forge"
Howard M. Jenkins

The Pennsylvania Magazine of History and Biography
Vol. 17, No. 4 (1893), pp. 430-443 (14 pages)
Published by: University of Pennsylvania Press

https://www.jstor.org/stable/20083559?seq=11#metadata_info_tab_cont...