There were two captains to the pivot gun, one on each side, stationed nearest to the base of the breech. Seventeen men were required to work the pivot gun, whose duties were defined in the names applied to them, the powderman being the odd one. The first and second captains were numbers one and two; the odd numbers being on the right, and the even on the left of the piece: number three was the first loader, four the first sponger, five the second loader, six the second sponger, seven the first shellman, eight the second shellman, nine the first handspikeman, ten the second handspikeman, eleven the first train tackleman, twelve the second train tackleman (the last two at the breech, next to the captains), thirteen first side tackleman, fourteen second side tackleman, fifteen first port tackleman, sixteen second port tackleman.