The greatest assembly of Hall of Famers ever, minus ...

There were 49 of 'em at Yankee Stadium on Tuesday night.
Sandy Koufax would have made it 50. Carlton Fisk, Sparky Anderson, Johnny Bench, Jim Bunning, Stan Musial, Duke Snider, Tom Seaver and Carl Yaztrzemski would have made it 58.
And Joe Morgan would have made it 59.
Right?
So where were they?
Koufax ... who knows. The former Dodger could have given 382 excuses for not being there. The New York media, probably. The Dodgers' home opener was enough to get him out in April.
We can give Musial, Anderson and Snider a pass, based on their age. (Although, you saw that 91-year-old Lee MacPhail was there).
Bench, Fisk, Seaver, Yaz .. whatever... thanks for playing along.
But Morgan ... even though he was definitely there for the festivities already as part of the ESPN crew of 1,000 nobodies, he didn't want to stand next to Ryne Sandberg, Bill Mazerowski or Rod Carew?
Or was it just Ryno he's still miffed at?
There's speculation at various outlets (linked here), but so far not at the blog FireJoeMorgan.com.
Are we missing any other baseball Hall of Famers who couldn't make the time to appear Tuesday night?