There are now 28 players in the 500 home run club. I went to a baseball autograph show in Atlantic City in 1989 that had 11 living members of the club which then included 14 players. I have included a photo of a Gateway Stamp Company signed envelope of the event which also includes an autograph from Pete Rose.
I still remember when Eddie Murray hit his 500th home run. I lived a few blocks from the Orioles stadium. I heard him hit it on the radio, then opened my back door to soak up the crowd noise.