From 1911, he was apprenticed to the illustrator
Frank Patterson, at the latter's
Billingshurst,
West Sussex studio. He was discharged on medical grounds after enlisting during
World War I, but re-enlisted with the
Army Service Corps for the final two years of the war. He married Betty Knight (died 1982) in 1917. After the war, they lived in
Fernhurst, Sussex, and had two sons. of a place at the
Slade School of Fine Art, but nonetheless had a successful career as a freelance illustrator and writer. For 60 years he wrote and illustrated a feature column for the
Cyclists Touring Club's Gazette. The dropping of another column, "In the Open Air", for
Scout magazine, resulted in international protests and it was restored. Gammon's autobiography, ''One man's furrow'', was published in 1990. Gammon died at
Bridgwater, Somerset on 22 April 1997, aged 103. The RWA holds a number of his works. ==Bibliography==