Lobb ltd who sold their paris shop to Hemes which became JLP did however make the first dubmonks, did they not? As you mentioned the William I assumed you were talking about dubmonks and not buckled shoes in general.
Just saying the William is not a good example of a generic shoe that became iconic as its a descendant of the first of its kind, unlike the Dover.
Love your website btw. The article on Tuczek is very informative. A good friend of mine works for Lobb...