| Date | Transaction |
| 02-28-2009 | Bill Howard has retired from the Norfolk Admirals. |
| 08-19-2007 | Bill Howard of the Norfolk Admirals is injured with an ankle ligament sprain and is expected to be out for approximately 21 days. |
| 12-03-2006 | Bill Howard of the Norfolk Admirals is injured with a shoulder joint injury and is expected to be out for approximately 32 days. |
| 01-08-2006 | Bill Howard of the Norfolk Admirals is injured with a wrist dislocation and is expected to be out for approximately 16 days. |
| 10-20-2002 | Bill Howard of the Norfolk Admirals is injured with a shoulder dislocation and is expected to be out for approximately 62 days. |
| 11-16-1997 | Bill Howard of the Norfolk Admirals is injured with a leg contusion and is expected to be out for approximately 6 days. |
| 09-08-1997 | The Norfolk Admirals have moved Bill Howard and Curtis Bundra to the active roster. |
| 09-08-1997 | The Norfolk Admirals have acquired Bill Howard from the waiver wire. |
| 09-07-1997 | The Washington Xenomorphs have automatically waived Bill Howard to comply with the 53-man roster limit. |
| 08-24-1997 | The Washington Xenomorphs have moved De'Mond Beals, Sam Lundy, Paul Fulcher, Ed Smith, Bill Thompson, Karl Harris, Larry Lowe, Mark Fox, Kevin Marker, Alvin Tuckey, Chris Clatterbuck, Chuck Smith, and Dutch Gonya to the active roster. The Washington Xenomorphs have moved Jeff Potter, Nate Matthews, Danny Thomas, Tony Norris, Gerald Croudip, Bob Cearing, Radell Smith, Curtis Bundra, Larry Johnson, Dedrick Berti, Earl Williams, Bill Howard, and David Reese to the inactive roster. |
| 09-02-1996 | The Washington Xenomorphs have moved Myron Ramsey, Bill Howard, Nate Matthews, James Jurgensen, David Reese, Jim O'Brien, Harry Little, Drew Brooks, Herbie Hall, Danny Thomas, and Gerald Croudip to the active roster. The Washington Xenomorphs have moved Kaseem Diehl, Mike Cherry, Dowe Claybrooks, Ted Fenner, Bill Thompson, Kevin Marker, David Kosins, Paul Fulcher, and Ben Flanagan to the inactive roster. |
| 08-26-1996 | The Washington Xenomorphs have moved Bill Howard and Drew Brooks to the inactive roster. |
| 08-19-1996 | The Washington Xenomorphs have moved Jack Chelf, Larry Johnson, Dedrick Berti, Bill Howard, Jeff Potter, Nate Matthews, David Reese, Jim O'Brien, Harry Little, Brandon Roberts, Kelen Williamson, Drew Brooks, Herbie Hall, Yatil Cobb, Danny Thomas, Gerald Croudip, Bob Cearing, Curtis Bundra, Radell Smith, Earl Williams, and Donnie Harrison to the active roster. The Washington Xenomorphs have moved Ted Jones, Lloyd Powe, Sammy Feagles, Israel Uremovich, Stan Carey, Tom Halloran, Pat Speelman, Dowe Claybrooks, Mike Cox, Bill Thompson, Sam Lundy, Steve Wyant, Dennis Brumfield, Alvin Tuckey, Porter Tyler, David Kosins, Hew Patrick, Paul Fulcher, Mike Shannon, and Ben Flanagan to the inactive roster. |
| 08-11-1996 | The Washington Xenomorphs have moved Tom Halloran and Pat Speelman to the active roster. The Washington Xenomorphs have moved Bill Howard and Donnie Harrison to the inactive roster. |
| 09-03-1995 | The Washington Xenomorphs have moved Myron Ramsey, Dedrick Berti, Bill Howard, Jim Tschappatt, Nate Matthews, James Jurgensen, David Reese, Jim O'Brien, Harry Little, Kelen Williamson, Aaron Compton, Drew Brooks, Herbie Hall, Danny Thomas, and Gerald Croudip to the active roster. The Washington Xenomorphs have moved Eddie Jenkins, Paul Waite, Garland Liebenstein, Jamie Young, Tom Halloran, Mark Franklin, Malcolm Faulk, Mike Cox, Cotton Earwig IV, Kevin Marker, David Kosins, Paul Fulcher, Mike Shannon, Ben Flanagan, and Greg Kelley to the inactive roster. |
| 08-27-1995 | The Washington Xenomorphs have moved Eddie Jenkins, Paul Waite, Garland Liebenstein, Tom Halloran, Ephraim Grant, Chip Burnette, Mark Franklin, Malcolm Faulk, Mike Cox, Kevin Marker, David Kosins, Randy Slater, Jamal DeLong, Paul Fulcher, Curtis Bundra, Mike Shannon, Ben Flanagan, and Greg Kelley to the active roster. The Washington Xenomorphs have moved Myron Ramsey, Larry Johnson, Dedrick Berti, Bill Howard, Jim Tschappatt, Nate Matthews, James Jurgensen, David Reese, Jim O'Brien, Harry Little, Brandon Roberts, Kelen Williamson, Joe Davis, Aaron Compton, Herbie Hall, Danny Thomas, Gerald Croudip, and Earl Williams to the inactive roster. |
| 08-08-1994 | The Washington Xenomorphs have moved Bill Howard, Ted Fenner, Frank Jefferson, and Bill Smith to the active roster. The Washington Xenomorphs have moved Louis Fetherston, Jim Bailey, Charle Summerell, and Mike Barrett to the inactive roster. |
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