Bill, Welcome aboard, hope you enjoy this list.
Wondering if you'd share some pictures of your Don Milberger with us? For those that might have missed it, Don wrote Lugs-Sign of Quality in "Bicycle Frames" by Joe Kossak back in 1975. There is a picture of his seat cluster on page 17 that I've always enjoyed. I've never seen a Milberger in person so a few shots of yours would be a real pleasure.
Might also be of interest over on the Frame buider's list?
Take care,
peter weigle
Lyme, Ct.