Sailed with an old man once who liked to have everyone fully booted and spurred for weekly BOT sports, although I did wear it a couple of times for parties and other such social stuff. If I needed a head covering it was usually either a woolly bunnet or a wide brimmed cricket hat I picked up in Australia, depending on climate of course. This was the same old man who must have curled up with his copy of Wrinkles in Practical Navigation every night as one of his (many) other peculiarities was that he insisted that every day that noon actually was at noon, therefore more work for the second mate and obscure clock flogs every night of a few minutes here and there depending on where we were and where we were going.
53 men would be around average for a 5/6 hatch British tweendecker of the period (the 40-60 bracket was common depending on trade). If a British ship carried "Indian" ratings (that is, any from the subcontinent) the longstanding arrangement as I remember it was that those ships were manned on a 2 for 1 basis, i.e. 2 Indians for every Brit that would otherwise be carried. Hence how some of the comparable ships owned by the likes of British India Line, Ellermans, Clan Line, the Bank Line etc could have as many as 80-90 souls onboard depending on the particular articles of agreement. Inter Departmental Flexibility (to give GP it's Sunday name) changed all that of course, not that it was around for very long anyway as UK crews mostly disappeared shortly thereafter and we went back to the old system but with foreigners.
Only ever came across pursers myself on those ships which carried passengers, even those which only carried a maximum of 12. Generally looked after all the crewing paperwork, passenger paperwork wages, overtime, customs, immigration, bond locker etc which would otherwise fall on the Master. Chief Stewards/Thief/Grocer were therefore limited to the catering side of things, although both Pursers and Grocers always did seem to share similar property interests in Spain...
Of course containers then went and ruined it!