I'm trying to find the rail company that this loco once worked for before its preservation but can't find any leads. Any chance you guys can help me?

Steam Locomotive Info page: https://www.steamlocomotive.info/vlocom ... play=23048

Can't help with its history, but here's a more recent photo of it, taken when I visited the Museum back in June this year.

There wasn't a lot of information about it on the display board situated by the smokebox either.....
The rail operation(s) at the Museum ceased some time ago - at least pre-Covid - and most of the locos are now on display in the main Museum building.