Ms. Capurro, who was born in Iowa, had lived in San Anselmo since 1961. She married Bob Capurro in 1963.
Ms. Capurro, a San Anselmo resident, had suffered cancer for years, said her sister, Carrolyn Bolin.
Ms. Capurro was chair of the San Anselmo Chamber of Commerce twice and co-president of the Ross Valley Rotary Club.
Ms. Capurro began a career in banking at Wells Fargo and joined Bank of Marin in 1989. For many years, she was a liaison between Marin’s business and nonprofit communities on local boards, including the Center for Volunteer and Nonprofit Leadership, the San Rafael Chamber of Commerce and local chapters of the American Red Cross and the Salvation Army.
“Joan empowered so many women to believe in their dreams, and I am blessed to be the recipient of her extraordinary faith, hope and love for humanity,” said Heidi Kuhn, chief executive of Roots of Peace, a nonprofit organization in San Rafael.
Ms. Capurro’s community efforts garnered recognition by the Marin County Board of Supervisors, the Marin’s Women Hall of Fame, 100 Faces of Marin, the American Cancer Society of Marin and the Spirit of Marin.
Kramer Herzog, a Rotarian in San Rafael, called Ms. Capurro a “beautiful person, both inside and out.”
Brian Sobel, chair of the Bank of Marin board, said he worked with Ms. Capurro for more than 20 years and remembered her “encyclopedic knowledge” of Marin’s charitable organizations.
“Joan was an incredibly special human being,” Sobel said. “She was one of the most recognizable people in Marin County.” Another bank board member, Norma Howard, said she knew Ms. Capurro for more than 40 years.
“She loved to laugh,” Howard said. “The character that Joan had was really warm and caring. Friends and family were very, very high on her list.” Kay Coleman, a former San Anselmo mayor, said, “Always with a great smile and fabulous hats, Joan’s contributions in the business world and as a town volunteer were many and varied: finding money for grants, cleaning up after the flood or helping others in their battles with breast cancer, Joan was our partner.”
Ms. Capurro died on Christmas Eve. Her survivors include her husband, her sister, her brother Glen Burford and several nieces and nephews, according to Debie Burford, her sister-in-law. The family plans to announce a memorial event in the spring or summer. In lieu of flowers, the family requests donations be made to a local nonprofit organization in Ms. Capurro’s memory.