| Date | Transaction |
| 02-28-2011 | Dan Johnson has retired from football. |
| 11-05-2007 | The San Diego Pirates have waived Dan Johnson. |
| 11-05-2007 | The San Diego Pirates have moved Wenz Jones, Terence Reilly, and Pete Nemecek to the active roster. The San Diego Pirates have moved Marv Panal, Dan Johnson, and Don McGinley to the inactive roster. |
| 10-01-2007 | The San Diego Pirates have acquired Dan Johnson from the waiver wire. |
| 09-24-2007 | The Memphis Mephitic Miasma have moved Jeff Bird to the active roster. The Memphis Mephitic Miasma have moved Varmint Baylor to the inactive roster. |
| 09-24-2007 | The Memphis Mephitic Miasma have waived Dan Johnson. |
| 09-10-2007 | The Memphis Mephitic Miasma have acquired Dan Johnson from the waiver wire. |
| 09-09-2007 | The Memphis Mephitic Miasma have automatically waived Dan Johnson to comply with the 53-man roster limit. |
| 08-06-2007 | The Memphis Mephitic Miasma have moved Phil Woodin, Rich Maniecki, Dick Pacella, Dennis Baylor, and Solon Ladese to the active roster. The Memphis Mephitic Miasma have moved Dwight Wright, Bob Smith, Dan Johnson, Kurt Johnson, and Chris Parker to the inactive roster. |
| 10-19-2003 | Dan Johnson of the Memphis Vanguard is injured with a partial MCL tear and is expected to be out for approximately 32 days. |
| 09-04-2000 | The Memphis Vanguard have moved Moses Winfrey, Ossie Walker, Josh Walters, Dan Johnson, Kim Hanneman, M.L. Blackshear, and Troy Beasley to the active roster. The Memphis Vanguard have moved David Holmes, Ox Young, Mark Cochran, Maugaula Parsons, Louis Midler, Merv Dinkel, and Johnnie Coffey to the inactive roster. |
| 08-14-2000 | The Memphis Vanguard have moved David Holmes, Ox Young, Donnie Pearson, Mark Cochran, Maugaula Parsons, Rick Hajek, and Louis Midler to the active roster. The Memphis Vanguard have moved Moses Winfrey, Ossie Walker, Josh Walters, Dan Johnson, Kim Hanneman, M.L. Blackshear, and Troy Beasley to the inactive roster. |
| 01-03-2000 | The Memphis Vanguard have moved Moses Winfrey, Ossie Walker, Josh Walters, Dan Johnson, Sonny Covington, Kim Hanneman, John Burton, and Troy Beasley to the active roster. The Memphis Vanguard have moved Chukky Shipp, Bo Badger, Charlie Sanders, Donnie Pearson, Rick Hajek, Louis Midler, A.A. Wilson, and Willie Porter to the inactive roster. |
| 12-27-1999 | The Memphis Vanguard have moved Charlie Sanders, Donnie Pearson, Louis Midler, Bo Badger, A.A. Wilson, and Rick Hajek to the active roster. The Memphis Vanguard have moved Ossie Walker, Moses Winfrey, Sonny Covington, Thomas Jacunski, Dan Johnson, Kim Hanneman, and Troy Beasley to the inactive roster. |
| 12-05-1999 | The Memphis Vanguard have moved Dan Johnson to the active roster. The Memphis Vanguard have moved A.A. Wilson to the inactive roster. |
| 11-22-1999 | The Memphis Vanguard have moved A.A. Wilson to the active roster. The Memphis Vanguard have moved Dan Johnson to the inactive roster. |
| 11-21-1999 | Dan Johnson of the Memphis Vanguard is injured with a finger fracture and is expected to be out for approximately 14 days. |
| 08-04-1997 | The Memphis Knights have moved Red Williams, Dan Johnson, Kim Hanneman, Curtis Dumler, Jeff Shoals, and Merv Dinkel to the active roster. The Memphis Knights have moved Drew Dyal, Jerry Lewis, Willie Johnson, Dave Prescott, and Daryl Cox to the inactive roster. |
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