June 29, 2007 (sorry, a day late)
The box score includes the names of some of your favorite Cubs:
Bob Howry (the homer made him the WP), Koyie Hill, Cliff Floyd, Rob Bowen, Felix Pie, Jacque Jones, Billy Petrick, Cesar Izturis, Angel Pagan, Ryan Theriot, Carlos Marmol, Michael Wuertz, Daryl Ward, and Mike Fontenot.
Bruce Froemming was behind the plate.
https://www.baseball-reference.com/boxes/CHN/CHN200706290.shtml