| Date | Transaction |
| 02-28-1965 | Leonard Roper has retired from football. |
| 08-05-1963 | The Minnesota Wolves have waived Leonard Roper. |
| 11-07-1960 | The Minnesota Wolves have moved Leonard Roper to the active roster. The Minnesota Wolves have moved Francis Chamberlain to the inactive roster. |
| 11-07-1960 | The Minnesota Wolves have acquired Leonard Roper from the waiver wire. |
| 08-29-1960 | The Washington Xenomorphs have waived Leonard Roper. |
| 08-28-1960 | The Washington Xenomorphs have moved Jack Stein, Mike Bell, Jamar Meixler, John Kell, Tom Webb, Jack Signaigo, Ricky Armstrong, Chris Whatley, Max Ariail, Leonard Roper, Billy Broughton, Solomon Still, Ed Allen, Sam Evans, Paul Nix, Gregg McDaniels, Al Ena, Hermit Simpson, Ted Trosch, and Bill Foltz to the active roster. The Washington Xenomorphs have moved Tom Walter, Johnny Settle, Rat Howard, Cory Kohl, Kevin Dubzinski, Oliver Zirinsky, Brandon Lund, Laron Stewart, Jack Prestel, Leo Scarpitto, Ferrell Anderson, Ken Randle, Travis Bright, Mike Woolfolk, Dan Potts, Jeff Wiska, Earl Mizell, Larry Herline, Brian Eissler, and Louis Secord to the inactive roster. |
| 08-22-1960 | The Washington Xenomorphs have moved Cory Kohl, Art Miller, Rian Kring, Ken Randle, Oliver Zirinsky, Mike Woolfolk, Desmond Swanson, Darwin Diehl, Gary Lepper, Jack Prestel, Jim Dumler, Leo Scarpitto, Louis Secord, and Tom Walter to the active roster. The Washington Xenomorphs have moved Solomon Still, Luis Green, John Kell, Steve Ryan, Ricky Armstrong, Donnell Fernandez, Chris Whatley, Hermit Simpson, Max Ariail, Leonard Roper, Ted Trosch, Bill Foltz, Mike Bell, and Ed Allen to the inactive roster. |
| 08-15-1960 | The Washington Xenomorphs have moved Anthony Mathison, Mike Bell, Ricky Armstrong, Leonard Roper, Solomon Still, Hermit Simpson, and Chet Samuel to the active roster. The Washington Xenomorphs have moved Cory Kohl, Desmond Swanson, Jack Prestel, Leo Scarpitto, Art Miller, Rian Kring, and Ken Randle to the inactive roster. |
| 08-15-1960 | The Washington Xenomorphs have acquired Leonard Roper from the waiver wire. |
| 08-08-1960 | The Detroit Devils have waived Leonard Roper. |
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