SAN DIEGO — Jaime Jarrin has been a member of many thousands of baseball fans’ families over parts of eight decades. That includes the man who owns the Padres and the man who calls their games on Spanish-language radio. “He’s a living legend,” Padres play-by-play announcer Eduardo Ortega said. “He’s huge. I remember always listening to him.” And to Padres Chairman Peter Seidler, Jarrin was simply always around. “He was calling Dodgers games the year before I was born,” Seidler said. “I have had the real pleasure of interacting with him my entire life.” Seidler and his brother, Tom, one of the …