Sea Captains have always been a symbol of stoic resolve and masculinity– as well as awesome mustaches & killer coats. Photos– The Library of Congress archive.
Throughout history, mustaches have been worn by military men. Generally, lower ranks wore smaller and less elaborate mustaches.
As a man advanced in rank, his moustache would become thicker and bushier, until he was permitted to wear a full beard.
Mustache or moustache, they are both correct. I’ll go with moustache from here on out.