Born 1 November 1889 at Newcastle-on-Tyne, the fifth child and fourth son of Ralph Hindmarsh, house and estate agent, and his wife, *née* Daglish. He was educated at Newcastle Royal Grammar School and Newcastle Medical School, graduating with honours in 1911. At the Royal Victoria Infirmary he was house surgeon to Rutherford Morrison, and also served as house physician, and as house surgeon in the gynaecological and skin departments. He then spent a short time in general practice at Amble and Ryton, Northumberland. During the war of 1914-18 he served in the RAMC, and at the end of his service was a lieutenant-colonel at Salonika. After the war he settled in general practice at Maryport, Cumberland. He took the Durham MS with first class honours in 1919, and also the Fellowship. After serving as surgical registrar he was elected assistant surgeon to the Royal Victoria Infirmary, Newcastle, in 1922, in which year he was Heath scholar. He worked under G Grey Turner and R J Willan, and was promoted surgeon in 1935. Hindmarsh was also surgeon to Whickham Cottage Hospital and Hexham War Memorial Hospital, and consulting surgeon to Alnwick Infirmary and to the Palmer Memorial Hospital at Jarrow. Hindmarsh was universally popular, and had a very large practice, and was especially in demand as a surgeon among his professional colleagues. He was an excellent general surgeon, with an interest in the surgery of toxic goitre. Though an omnivorous reader and assiduous visitor of surgical clinics at home and abroad, he found little time for research or writing. He took his share in the meetings of medical societies and was a good debater. He was elected an examiner for the final Fellowship in 1949, but did not live to take his seat in the Court. He was an amateur of music, and for recreation enjoyed golf and fishing. Hindmarsh married in 1914 Meta Ritson, who survived him with two daughters. They lived for a time at Millfield, Eldon Place, Newcastle, and latterly at 29 Mitchell Avenue, Jesmond, with consulting rooms at 1 Kensington Terrace, Newcastle. Hindmarsh died in the Royal Victoria Infirmary on 8 December 1949, aged 60. His nephew, F D Hindmarsh, was assistant surgeon to the Infirmary at that time. Publications: Blood transfusion. *Durham Univ Coll Med Gaz* 1920. Surgical treatment of tumours of the spinal cord. *Newcastle med J* 1927, 8, 32. Treatment of thyrotoxic goitre. *Newcastle med J* 1928, 9, 39.