You are correct. I was getting the two operations confused. Weinberg was indeed the owner of the hospital where Greb died, McGivern, Greb's doc, was attending as well (and signed the death certificate if Im not mistaken. Gustave Guist was the Dr. visiting from Europe a month or so earlier who replaced Greb's eye. Fraalick was the New York Dr, who nowadays would have been called a sports physician that catered to elite athletes and was attending Flowers when Tiger died. Fraalick had also repaired Jack Delaney's hands if Im not mistaken as well as several other boxers of note and a couple of major league ball players Ive found also. Its interesting this conversation pops up because I was just watching "Babyface Goes to Hollywood" about McLarnin, and for some reason the documentary goes of on a tangent about Greb and Flowers deaths and makes the ascertion that they were murdered. I find this kind of statement irresponsible and ridiculous. There isnt a shred of evidence that either were murdered, in fact its fairly solidly established how and why they passed away. To make such sensationalist claims without any evidence whatsoever is pretty weak, and even weaker for writers and filmmakers to publish such nonsense.