I remember a few great instructors from my early days in the corps (joined late '68).
I remember being in the annexe before the new school opened and there was a great butchery instructor - he may have been the Swan just mentioned but I'm not 100% sure on that.
Another one I recall was Hyman? Again I'm not 100% on this but we did have a nickname of Hyman the Pieman for him
Two I do recall are Chef Jenner and Chef Frost. Now Jenner was a portly guy with a great character - he had a huge wooden spoon on the wall of his area.
I remember he seemed to be fond of Hell's Angels - in that the local guys did a lot for charity, while he hated skinheads (in the rage at the time).
Chef Frost was in charge of the section the cooked lunch for the other chefs. He (quite rightly) wanted the food produced to be superb and I can remember when we were being scheduled for that week for the second time thinking "oh no....."
One final one who I can't recall the name of used to be heard down the annexe regularly shouting "hurry up...hurry up...we've lots to do and little time to do it in..." in a west country accent.