Homburg hat styles

[HappyStroller]

I'm about to order another Homburg as the one bought last year is slightly undersized.

There's no Homburg called the Eden, but there are others whose origin are pretty obvious, especially the one called Churchill.

But which PoW is being referred to with regard to the Prince of Wales Homburg. Is it Edward VII?

Also, any idea for the reference to Fairfax?

And, Holbrook?

Finally, the Banker's hat. Any specific banker?