MRCS LRCP 1896.
Gregory studied medicine at Owens College Manchester; he held resident appointments in Manchester at Monsall Fever Hospital and Crumpsall Union Hospital before being appointed senior resident medical officer at St Mary's Hospital Manchester. Gregory was then surgical registrar at MRI before settling in general practice in Cheetham Hill. His practice became very successful and Gregory was highly regarded. Gregory was a member of Manchester Medical Society and the Manchester Pathological and Clinical Societies. He died on 30 April 1939.