Mike Stonum – General Partner/Winemaker/Vineyard Operations

Mike Stonum

Mike was born and raised in Los Altos and is a lifelong resident of California. His viticulture experience began when he was eighteen years old, working as a vineyard foreman in Mendocino. In 1979, ready to farm his own land, he planted the zinfandel vineyards on the Stonum Vineyards property in Lodi. This beautiful vineyard is renowned by visitors and locals alike. Mike's tenacious work ethic and refusal to cut corners has resulted in the incredible fruit we use in our world class red wine. Mike is also very proud of his career with the California Department of Forestry and Fire Protection where he retired as a Battalion Chief in 2007. When you stop by for tasting, ask him to share some of his forest fire battle stories with you. Mike is a self-taught winemaker who has perfected his craft by study, experimentation and a passion for creating wines in the old European style. Mike has been married to his wife, Maridel, for twenty-nine years. They have a wonderful daughter, Francesca.

Maridel Stonum – Retail & Client Relations


Maridel came to the United States in 1982 after graduating from college with a Bachelor Degree in Nursing. After initially working in Texas, Maridel moved to California in 1983 to work at acute hospitals in the central California area. Maridel handles all of the administrative functions of the ranch, organizes the annual Wine Club event, personally conducts the wine tastings each week, makes sure that our incredible crew is fed and hydrated and has recently begun assisting in several of the winemaking procedures.

Kathy Stonum – Winemaker/Winery Operations

Kathy Stonum

Kathy was born in San Francisco and grew up in Los Altos. She attended San Diego State University, University of California at Los Angeles, and graduated from San Jose State University with a Bachelor of Arts degree in Political Science and a teaching credential. In 1975, Kathy moved to Mendocino County where she secured her first teaching position and raised Arabian horses. In 1978, she took advantage of an opportunity to teach in Norway and travel through Europe. In 1979, the purchase of seventeen acres brought her to Lodi to help develop the family vineyard, and subsequently become a self-taught winemaker. Kathy’s winemaking philosophy is simple yet exacting: to create wines with finesse and balance using a light touch and minimalistic intervention, allowing the true character of the fruit and terroir to emerge. In 2013, Kathy retired from a thirty-five year career in education. She currently pursues her passion of growing grapes and making wine with her family at Stonum Vineyards.

Kaleb Vanderham – Consulting Winemaker

Kathy Stonum

Born and raised on a farm in California and educated at Fresno State, wine became Kaleb's passion early in his youth. Wine has an ancient lineage behind it as an art. After extensive travel and work abroad educating himself in the styles and techniques of winemakers he respected, Kaleb found his way back to California and winemaking became his life's work. Wine making in our small batch & labor intensive style is hard work. Kaleb loves nothing more than the reward of seeing a smile on someone’s face when they first taste our incredible wine.

The Crew

Kathy Stonum

Ireneo Magallanes - Thirty-five years ago, at the age of eighteen, Ireneo began working at Stonum Vineyards. Ireneo is a hard working, loyal employee who has helped shape Stonum Vineyards. His favorite task is pruning the vineyards that he helped plant.

Sergio Barriaga - Sergio joined Stonum Vineyards in 2007. His enthusiasm, good nature, and strong sense of responsibility have made him a valued member of the team. Sergio enjoys working in the vineyard, as well as the winery.

Chris and Charls Dasilao - Assistant Winemakers - Siblings Chris and Charls began working at Stonum Vineyards in 2014. Instilled with a strong work ethic and an eagerness to learn, they are a great asset to the team.

Paul Meyers - General Partner

Paul Meyers

Paul Meyers - was born in Milwaukee, Wisconsin and did a short 18month residency before the family moved to Los Altos Ca. He grew up in a ranch home surrounded by Apricot and Cherry orchards. He delightfully recalls “incalculable” hours with his mom picking, pitting, and drying the fruit from their Apricot haven…Paul and Mike together attended and graduated in ‘75’ from Homestead High School in Cupertino…

Should mention here that Steve Jobs and Steve Wozniak, a couple of years ahead of Mike and Paul, claim same honor. “ I grew up in a wonderful period , in an incredibly “Rockwellian era” about to change from “Fruit capital of the nation” to technology center of the world. The word “Silicon Valley” had not yet been conceived!”

After mechanical engineering schooling, Paul moved to San Juan Capistrano , Ca to raise his family of 4 with his wife Mary. He formed Capistrano Labs. in San Clemente, Ca. and now proudly designs and manufactures (with all USA parts and suppliers) a compliment of products providing 60% of the world market with Medical Eye Care Diagnostic products…” It’s about time I return to “the orchard”…Only this time…harvest won’t require a rickety wooden ladder!”