Cute chicks! I know you're thrilled to get started with them.
Just for historical accuracy and to give credit where credit is due, Harry Shaffer also created his own line of lavenders, aka self-blue, at about the same time that John Blehm and Michael Muenks were working on their line. Those lines have crossed so much in the past years, that it would be hard to identify either one as the progenitor of all self-blues in the Ameraucana breed.
Most of the LF and bantam breeds were developed concurrently by many people across the Mid-West..and California..in the early years of the breed. The first bantams to actually be accepted into the ABA were whites and wheatens, which, if I remember my history correctly, were then bred up to standard size - mostly by Jerry Segler, Mike Gilbert, and Don Cable. (Although it may have been the other way around - LF bred down into bantams - my brain is dead tonight and I can't remember - but either way, it was whites and wheatens that were first developed)