" I often wondered if his skills have been taken up by a commercial retailer and some of the alternate branded knives are his doing? "
I'm not sure Sharpfinger, but I have a feeling that even with his skills the whole knife making process perhaps became almost an expensive past time for him and others. I recall that 10+ years ago there seemed to be a knife maker round every corner but slowly the numbers have decreased to the present level. Well known names no longer seem to be offering knives for sale.
Personally I think the Wild Camping era is with us now and knives are way down the fashionable required kit list. Gucci tents, and feather light kit s the New Order. Bush Craft is now practically 'Cooking in the Woods' judging by the output on You Tube, cast Iron pots and Titanium Mugs rule...Ah! Don't forget yer Trivet and spice rack...