DeDodgers dealt for DeDad of Delino DeShields for Pedro Martinez.
Best baseball families:
Bonds
Griffey
Ripken
Guerrero
Alomar
Biggio
DiMaggio
Boone
Bichette
Tatis
Martinez
Fielder
Niekro
Yastrzemski
Leiter
Gordon
Bell
Francona
Wilson
Hayes
Raines
Alou
Drew
Stottlemyer
Tartabull
Gwynn
Barfield
Canseco
Mondesi
Armas
Bedrosian
Pena
DeShields
IDK how I feel about that one. I didn't look into Ducky much and Dick was a decent player (record holder too, see below). I think I just excluded because it was an uncle/nephew gimmick rather than father/son or brother/brother. Their lineage was a little more indirect.
He shares the record for most seasons having at least 400 at bats and fewer than 100 hits, having done it four times.