Received his professional training at the London Hospital and was the sixth John Barker in direct succession who practised at Coleshill, near Birmingham. One of these, a John Barker (1708-1748?) published a controversial paper, printed at Salisbury in 1743, "On the Nature, Cause and Cure of the Pres

Lived and practised at Ormskirk, Lancashire, residing at The Cottage, Burscough. He was at one time Honorary Surgeon to the Ormskirk Dispensary. JP for County Lancaster. He died on July 18th, 1878.