Hi Bill,
In an effort to clearly show the tools included in the Craftsman Whitworth set, I sort of zoomed in on it, resulting in a view of just a portion on the entire catalog page. Back in 1960, Craftsman could advertise all of its Whitworth AND metric tools on just two thirds of a page. Those were their very first offerings. The Whitworth tools were gone from the catalog by 1962, and the metric selections only expanded. Anyway, if you take a look at the full page from the 1960 catalog, notice the upper left hand corner. I think that little car represents the British car/Whitworth market Sears was aiming for.
As for the wrenches, I have been on the lookout for Whitworth tools for a few years now, in anticipation of buying the MG. I completely agree your observation. I seem to come across DOE wrenches more often than DBE or combos. I don't know why that is, but I do see a lot of DOE Whitworth wrenches.
Jim C.