At Were 18th century British mariners incentivized to serve aboard fireships? I am assuming that my candidate 6th great grandfather Jeremiah was a Steward of the ship Cumberland from 7 Mar 1748 to 22 Aug 1750, and that the Cumberland was a fireship.
Comments on that question have raised some doubts as to whether this particular Cumberland was actually a fireship after all.
How can I establish that the Cumberland he served upon was (or was not) a fireship?