OD
boatswain
captain
caterer
chandler
chief engineer
chief mate
commander
commissariat
commissary
deck officer
donor
furnisher
manciple
master
mate
merchant
naval officer
navigating officer
navigator
patron
pipes
provider
provisioner
purveyor
retailer
sailing master
second mate
shipmaster
skipper
steward
stock clerk
storekeeper
supplier
sutler
the Old Man
victualer
vivandier
watch officer
army officer
adjutant
armorer
aviation
chaplain
commandant
inspector
midshipman
ordnance
paymaster
purser
sergeant
sergeant major
serjeant-major
surgeon