Henry Conn

Former Royal Navy officer turned Cornish arsenic manufacturer who opened Creggan mine around 1852 with his son William, before financial pressure on his Cornish business forced him to sell his Irish mining interests.

Mines operated

Mine	Region	Years
Creggan Silver-Lead Mines	County Armagh	1852–1854

Record created: 26 August 2026 · Last researched: 26 August 2026