Long before they made headlines after winning a $141 million California lottery jackpot in 2001, Alcario and Carmen Castellano were stalwart supporters of San Jose’s Latino community and its events. Sure, their lottery windfall allowed them to make a much larger impact, but they were hardly newcomers to the scene.

The Castellano Family Foundation will mark its 15th anniversary with a public celebration at the Mexican Heritage Plaza in East San Jose on Friday, and the festivities will include the debut of a project with roots dating back decades earlier.

It’s a one-hour documentary about San Jose’s popular parades and festivals for Cinco de Mayo and Fiestas Patrias, the Mexican Independence Day celebrated on Sept. 16. Those celebrations — both downtown and at the Santa Clara County Fairgrounds — famously drew thousands of attendees for about three decades, but they were marred by violence during Cinco de Mayo in 1997 and stopped after 2010 when the San Jose chapter of the American G.I. Forum, the sponsoring organization, could no longer afford to stage them.

Get top headlines in your inbox every afternoon.

Sign up for the free PM Report newsletter.

But Al Castellano captured more than a decade’s worth of the spectacle, stretching from 1987 to 1996, on VHS tapes. He’s been working with his daughter, Carmela Castellano-Garcia, for two years to create the documentary.

“It’s the only record that we know exists of those events,” said Castellano-Garcia, who is also president of the family foundation. “Going through these videos really helped me understand how my father loved the community and his commitment to these events.”

Father and daughter spent hours at a time poring through video footage and reliving memories for both. Castellano-Garcia was the San Jose G.I. Forum queen in 1983, giving her a prominent place in the celebrations. Castellano, 82, narrates the entire video, providing his perspective on Latino pride and culture.

“I was so impressed at his ability to roll up his sleeves and do this meticulous work,” Castellano-Garcia said, adding that it’s only part of a collection of videos he’s made on other events and cultural activities that the family is working to preserve digitally.

The premiere screening will be the centerpiece of the 15th anniversary event, which starts at 6:30 p.m. and will be followed by a music-filled “pachanga” dance party in the plaza’s courtyard. The celebration will reflect on the foundation’s mission to support arts, education and leadership development and recognize many of its grantees, who have been beneficiaries of $5 million in donations over 15 years.

The celebration is free and open to the public, but you should register at castellano-ff.org.

FOLLOWING THE LEADERS: One of Silicon Valley’s famous financial power couples — NextGen Climate founder Tom Steyer and Beneficial State Bank co-CEO Kat Taylor — will join Community Health Partnership CEO Dolores Alvarado as this year’s honorees at People Acting in Community Together‘s annual Leadership Luncheon on Nov. 9.

The multi-faith community-building organization introduced the trio of honorees at a backyard reception Friday evening at the Los Altos home of Cynthia Dinh and Chester Te. “I’m generally acknowledged to be the warm-up act for Katherine Taylor,” Steyer said before talking about how NextGen’s goals line up with PACT’s. He turned out to be right, as Taylor finished up her remarks by breaking into a couple verses of Jackson Browne’s thought-provoking anthem “For a Dancer.”