expeditionist

As a kind of time-traveling expeditionist — a chrononaut?

Indeed, the servant question is one of the most serious of those which present themselves to the mind of an intending Abyssinian expeditionist.

It should be a place where an expeditionist could find all that is known about the region he intends to invade, chart his routes, examine the latest types of gear and their records in service.

Sweden's foremost expeditionist, he has prowled over Central Asia, pried into its secrets, off & on for 48 years.