The 1991 football team was the last to win a conference championship, tying for the title with Linfield after finishing with a 5-1 record and a 7-2-1 mark overall. Lewis & Clark qualified for the NAIA national playoffs that season. This Pioneers team included Dan Ruhl, who was an NAIA First-Team selection. Ruhl was inducted into the Lewis & Clark Hall of Fame in 2002. Fellow Hall of Famers Brandon Ito and Jake Smith were members of the team and Brent Pavlicek was also an NAIA Honorable Mention selection that season.
Jake Anders, Joseph Backus, Patrick Basso, B.Z. Brown, Bart Brown, Chad Carlson, Keith Chang, Joe Condy, James Davies, Jason Fellows, Glenn Ferguson, Tony Fowler, Adam Guenther, Kevin Hayes, Scott Heater, Mike Henderson, Jeffery Hensley, Chad Holloway, Geoff Holly, Brandon Ito, Jeremy Johnston, Barney Lewis, Noa Lidstone, Donald Lien, Jeffrey Miller, Doug Mootz, Michael Morris, Jeremy Morse, Bob Niendorf, Mike Palelek, Bob Patzke, Brent Pavlicek, Les Perkins, Jeff Peters, Mosely Pothier, Jason Racette, Max Rawson, Dan Ruhl, William Salka, Eric Schindler, Aaron Schneider, Forrest Sherman, Ben Silva, Morgan Smith, Jake Smith, Zeke Smith, Lance Soliday, Christian Stephens, Schearon Stewart, Justin Talbott, Joshua Uithof, Jerry Walker, Martin Wynne, Tobin Zerba. Head Coach: Tom Smythe, Assistants: David Etherly, Jerry Harn, Andy Harrah, Dan Morrison, Jason Phillips, Ernie Richardson, Chuck Solberg, Steave Stanich, Rick Ward
