MB ChB Manch 1936.
Henry studied medicine at Owens College Manchester and was orthopaedic and casualty house surgeon at Chesterfield and North Derbyshire Royal Hospital before being appointed resident casualty officer at Oldham Royal Infirmary. Gregson was orthopaedic house surgeon at Ancoats Hospital before moving away from Manchester. Gregson pursued an orthopaedic career with appointments at Doncaster Royal Infirmary and Stamford Independent Hospital before settling as a general practitioner and appointed factory doctor in Cromer, Norfolk.