there was another that was 2 initials followed by a name (x.x. smith, for example) that eludes me at the moment.
Do you mean C.J. Walker?
Didn't Will Vincent used to restore and modify those old Western Electric tube amps? Wish he was still working his magic too! I think he has retired from his work with ST-70s, etc. There are quite a few of his restored Dynaco ST-70s out there. He made quite a name for himself here on Audiogon.