The Master Gunner was in charge of all guns, shot and gunpowder on the ship. He was also responsible for training of the gunnery crews. His skeleton was found within the wreckage and could be identified by his clothes and the tools he was carrying. His cabin was identified by his chest which contained the Gunners tools.
Among the items found in the chest were a guage for iron shot (14). Using this the shot were checked to ensure that they were the correct size for the cannon. The journal cover (12) and the rings (16) indicate that like the Master Carpenter, the Gunner was an educated man of some wealth.