Collen Williamson (b.
1727) was a master mason from Dyke in Moray, Scotland.
He is known for his work on Moy House,[1] a Category A listed building near Forres in Scotland,[2] and for his later work on the White House, acting as chief stonemason on its construction between 1792 and 1795.
[3] He remained in America after working on the White House, and died in Maryland in 1802.
[4] This Scottish history-related article is a stub.