Because I never tire of "How-old-is-he?" stats (though I think poor Jamie is growing weary of them), here's one I compiled myself. Eyeballing his pitcher-batter matchups, it appears that Moyer has pitched to four father-son combos: Buddy and David Bell, Bob and Bret (and Aaron) Boone, Jose Cruz Sr. and Jr., and Cecil and Prince Fielder. His career has also run parallel to eleven other father-son pairings, though he didn't actually face one or the other of each duo: Alan and Andy Ashby, Jesse and Josh Barfield, the Ken Griffeys, the Jerry Hairstons, the Gary Mathewses, Hal and Brian McRae, the Tony Penas, Tony (!) and Eduardo Perez, the Tim Raineses, Gary and Daryle Ward, and Mookie and Preston Wilson (Mookie is actually Preston's uncle and stepfather, believe it or not!). That's quite a legacy. Oh, he also pitched against Chris Speier; I didn't include the Speiers because son Justin is a reliever with just 17 career at-bats.
I wonder if Jamie can hang on until Trey Griffey is ready for the big leagues.