St John's Church, Troedyrhiw — Merthyr Tydfil Ministry AreaBuilt in Troedyrhiw in 1850, partly at the expense of Anthony Hill, the iron master of Plymouth Ironworks, St John’s was chapel of ease to Merthyr Tydfil, then became the Pentrebach parish church by 1860.Built in Troedyrhiw in 1850, partly at the expense of Anthony Hill, the iron master of Plymouth Ironworks, St John’s was chapel of ease to Merthyr Tydfil. It then became the Pentrebach parish church by 1860. The church contributes to the work of the Merthyr https://www.merthyrtydfilministryarea.co.uk/st-johns-church-troedyrhiw