The mention of "Monksgate" suggested the other tunes were named the same way. "Bunessan" wasn't - as in the more common pattern, it was named for a place near where it was first used as a hymn, not where it was first known from. (We've had a long thread about "Bunessan", and its origins got pretty murky and complicated).

So it looks like the only hymn composer ever to do what Ian described was RVW.

Anyway, there is no reason to think the "British Grenadiers" tune came from Sheffield.