Born at Ormskirk in Lancashire, the eldest son of John Mawdsley, Attorney-at-Law of that town. He practised at 9 Hanover Square, London, W, and died there unmarried on October 7th, 1869, leaving by will some £60,000.

Was a well-known surgeon in Leeds, having been prominently connected with the Leeds School of Medicine, where he lectured on surgery, anatomy, and physiology. He helped to establish the Leeds Public Dispensary, with which he was connected as one of its Surgeons from its opening in 1824 till 1852. He

Practised at Trinity House Lane, Hull, and was Surgeon to the Hull General Infirmary and to the Lying-in Charity. He was also Lecturer on Anatomy at the Hull and East Riding of Yorkshire Medical School. Late in life he was living at Hessle, Yorkshire, where he died in or before 1860.