Thomas Bonsall

Mine manager from Bakewell who ran Cwmsymlog for Chauncey Townsend from 1751 and managed it until its closure in 1793, notorious for taking only the richer ore and leaving no pillars.

In the archive

• Manager · Cwmsymlog Mine (1751–1793) — Townsend's manager from 1751; took only the richer ore and left no pillars, leaving the ground unstable.

Sources

1. Cwmsymlog Mine chimney, Trefeurig (Cadw listed building 83663), Cadw, via British Listed Buildings
2. The Darren Mines (incl. Cwmsymlog or East Darren Mine), Northern Mine Research Society

Record created: 18 September 2026 · Last researched: 18 September 2026