Talk about burying the lead...
The plot thickens. A hat tip to commenter Adrian Martinez, who informs us that Justin Timberlake is the nephew of John Timberlake, GM of the Clearwater Threshers.
And it is apparently true, as Larry Shenk, VP of Alumni Relations with the Phillies wrote a few years back.
There you have it. Mystery solved.
Smash, SMASH, SUH-MASH!