Not to create a thread creep but that brought to mind another steam boat term, I guess its mind creep on my part. "Donkey Boiler" was the temporary boiler boat that was placed alongside a steam boat to provide steam power for generators, pumps, etc.. when the main boat's boilers were down for repair or maintenance. Directly from that came the term "Donkey Man" similar to the army's Jodie. Brought alongside the crew member's significant other when the steam boat was underway and the crew was out on the river. I still use that term today.
dan