Well since no one in my family shot archery, and I started to shoot when I was about 7-8 yrs old and that was way back in 57-58, as in 1957-58, I guess myself. I never had a instruction but was lucky enough to end up with good form.
If I had to pick someone, I guess it would have to be our very own moebow, since I have been watching his instructions to others closely and then checking to see if I am doing what he recommends, though most of the time I am, I still learn why it's correct, and am able to correct any imperfections in my form. Kind of like learning what I use to do naturally but now understanding it all.
Thanks Moe !