Ironmaster \I"ron*mas`ter\, n. A manufacturer of iron, or large dealer therein. --Bp. Hurd.
Troy ironmaster Henry Burden built the world's biggest hydropower waterwheel, and his mills churned out a horseshoe every second, shodding almost all the horses used by the North in the Civil War.
At Buxted, on the Wealdway, an ironmaster named Ralph Hogg cast the first English cannon in one piece in 1543.