Jock Mckay Aka Jack Mckay (1930)

My late father had a habit of saying 'Aye aye, Jock Mackay' during lulls in conversation.  I'd no idea that there really ever was a Jock Mackay, but good grief here he is on Youtube, in the 'flesh', and wearing a delightful 'double tartan' outfit that I can imagine might appeal to the Tupfinder General.  Someone kind on Twitter pointed it out to me.