Kevin asked the very same questions I was thinking! You were all of 22 or 23 in ‘68, right?
Just looked up Numbers 1 & 2 was recorded in Aug ‘67 — when you had to have been all of 22 at most (maybe even 21?).
Doing the math, Lester was just shy of 26 when Num1&2 was recorded — you sure hit the ground running!!
But I imagine you had to have had a good handful of other formative experience before — do tell!