Tom Vrolyk died last month from a fall at his  home in Inverness. He was 57 years old. At a memorial service held on Sunday in Bolinas, where he worked at the Resource Recovery District, friends recalled a talented sailor and a gentle man.

Born outside Los Angeles, Tom was a precocious young boy. “By the time he was 5, he could read, write, add, subtract, multiply and divide—and play Blackjack and beat adults,” recalled…