Peter, I can see we're not going to get agreement, and realise there's a good deal of sentiment attached to things that belonged to our parents, and that cetainly is a handsome bar. To me it's a little like displaying their degrees as though they were ours, or wearing their medals. I'd be 100% in favour of that badge bar being displayed in a cabinet, or or the wall in your garage, or somewhere like that, but not in public on your car, like they were yours.
MGA 75002 -I don't see what provenance has to do with it. Provenance proves a car's history, but I'm stretching to see how a badge bar off a Rolls-Royce does that.
Back to Peter -
Badge no 5 is of the Veteran (not Vintage) Car Club of Great Britain, surely? I'm also pretty sure that no 4, ACO is Automobile Club de l'Ouest (Automobile Club of the West, organisers of the le Mans 24 hour race). Their badge has been through several iterations, but they usually embody a mangle-geared cog, and though your picture's pretty blurred when I blow it up, it does seem to be like that.
No 2 is historically interesting as the Province d'Alger no longer exists - it disappeared with Algeria's independence from France in 1962. What with that, the Cameroon and ACO badges, did your father have a French connection?