Menzies is Scottish and as you say: "Mingis".
Featherstonehaugh -> Festonay (I made mine up - do you have a citation ... to be honest, "fanshaw" sounds right)
Loughborough -> Luffbru
Your others, I agree with. eg (Mr) Mainwaring - Dad's Army.
Featherstonehaugh -> Festonay (I made mine up - do you have a citation ... to be honest, "fanshaw" sounds right)
Loughborough -> Luffbru
Your others, I agree with. eg (Mr) Mainwaring - Dad's Army.
https://en.wikipedia.org/wiki/Stanley_Featherstonehaugh_Ukri...
There's also https://www.cntraveler.com/story/youre-probably-pronouncing-...
"...You could try hundreds of pronunciations of "Cholmondeley" (in Cheshire) before hitting on "chumley," and the sixteen-letter "Featherstonhaugh" (in Northumberland) drops more than half its weight to become "fanshaw."..."
etc.