Gilbert Frank Coffin Gilbert Coffin was a 1st Air Mechanic with the Royal Air Force, and served during World War 1. He was the fourth son of William Coffin of Chislehurst. His brother (the 3rd son) was killed in France on 4th October, 1917. His two other brothers were also serving during the war. Prior to the battle, he served in the City Police Force. He enlisted in the Royal Naval Air Service in 1915, and was soon on active service around the Belgian coast. He spent nearly 2 years…