It didn't take Wikipedia long to update this page: http://en.wikipedia.org/wiki/Jack_Harbaugh
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Jack Harbaugh (born June 28, 1939) is a former college football player and coach, and the father of the first pair of brothers to serve as NFL coaches and the first pair of head coaching brothers to face off in a Super Bowl: Jim and John Harbaugh.
And I thought I was quick.
It's already dubbed the Harbaugh Bowl:
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Both brothers eventually participated in the Harbaugh Bowl on Thanksgiving Day, which was a day before Jack and Jackie's 50th wedding anniversary. They will also participate in another Harbaugh Bowl when they coach the two teams in Super Bowl XLVII.
Hark! Is that the sound of Casascius minting a special edition coin?