I remember watching the game that Holt hit for the cycle in, it was about 3 years ago.
What is forgotten about that game is that the Red Sox almost had 2 players hit for the cycle that night. Mookie had a single, double and triple. Right after Holt completed his cycle with a triple, Betts came up with needing a homer to also accomplish the feat. He flied out as I recall.
I don't think two players hitting for the cycle in one game has ever been done. To have the possibilty of 2 guys hitting back to back in the line-up do it is mind boggling.