MRCS LRCP 1913; DMRE Camb 1923.
Twining studied medicine at University College Hospital London, where he held junior appointments. From 1916 Twining devoted himself to radiology and electrotherapy. He was radiologist and electrotherapist to the BRC (later) Ministry of Pensions Hospital, Netley, resigning to study for his radiology diploma. On gaining this qualification in 1923, Twining came to Manchester as research scholar at MRI. Twining worked for a number of years as assistant radiologist at MRI, joining the honorary staff in 1928. He was also honorary radiologist at Ancoats Hospital and at Christie Hospital and Holt Radium Institute. He was a lecturer on radiology and electrotherapeutics at the University of Manchester. Twining was known for his work in improving x-ray methods, in particular the development of tomography, and for his work on the chest and brain. Twining died on 7 May 1939, age 52.