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ANNE MOLLER-RACKE, President and Winegrower
A native of Oberwesel, Germany, Anne Moller-Racke came to California in 1981 and became vineyard manager for Buena Vista Carneros Winery in 1983. She was named director of vineyard operations in 1988 and was promoted to vice president of vineyard operations in 1997. During that time, Anne worked intensively with some of the industry's foremost authorities, including Andre Tchelistcheff, Dr. Phil Freese and Dr. Paul Skinner. She helped establish what is now the Carneros Wine Alliance and brought recognition to Carneros as an American Viticultural Area (AVA).

Moller-Racke was instrumental in developing Buena Vistas Carneros Estate, expanding the planted acreage from 540 in the 1980's to 935 a decade later. In the late 1990s, she replanted over 500 acres, carefully innovating viticultural practices and selecting rootstocks, clones, trellising and irrigation techniques for each vineyard block.

In 2001 Moller-Racke was asked to lead the Donum Estate project. Today she continues to farm 70 acres of vines at the home ranch in Carneros and 16-acre in the Russian River Valley, the Winside Vineyard, as well as working closely with the Angel Camp Vineyard in Anderson Valley. Moller-Racke brings a vast knowledge of the appellations and sites to her role as wine grower. She has truly become a wine grower, sheparding the grapes from vine to bottle. As president, Moller-Racke's management style inspires a committed team to work with the utmost pride and care on the ultimate Pinot Noir project.


KENNETH JUHASZ, Consulting Winemaker
Kenneth Juhasz (YOU haas) began his winemaking career dragging hoses in a cold cellar in Oregon. His interest in enology had grown as he worked his way through school in fine restaurants and the local wine shop in his native North Carolina. After college, Kenneth eagerly pursued his passion for Pinot Noir west to the Willamette Valley. There he began working with winemaker Ken Bernards, who became Kenneth's mentor over the next few years. When Juhasz came to Carneros in 2002, Bernards helped him to create and launch the "ultimate Pinot Noir project" at The Donum Estate and to develop a fresh identity for the Robert Stemmler label. Kenneth was appointed winemaker for both Donum and Robert Stemmler in 2005. Committed to working tirelessly through each harvest and to obtaining maximum quality in the vineyards with wine grower Anne Moller-Racke, Kenneth has succeeded in creating wines of power and elegance that are true expressions of site. While enhancing his knowledge with forays to Oregon and the South Island of New Zealand, where he spearheaded a start-up Pinot Noir operation at Hinton Estate, Kenneth remains dedicated to producing outstanding wines from estate vineyards in the Carneros and Russian River Valley appellations. He also produces fine Burgundian varietal wines from Sonoma, Mendocino and Oregon's Willamette Valley under his own label, Auteur.



DAN FISHMAN, Winemaker
An integral part of the winemaking team since 2007, Dan Fishman began at The Donum Estate as an intern under consulting winemaker, Kenneth Juhasz. Five vintages in, Fishman was increasingly comfortable with the fruit coming from our estate vineyards in Carneros, Russian River Valley, as well as the Angel Camp Vineyard in Anderson Valley and it was a natural progression for him to take over the winemaking helm in June 2012 as more time and attention was needed for the crafting of additional single vineyard wines. With an unwavering appreciation for each vineyard's unique character, Fishman's winemaking style for Stemmler is one that allows for each lot to reveal itself and the treatment it demands while always welcoming the opportunity to experiment using both historically known and cutting-edge winemaking techniques. This willingness to experiment and keen intuition stems from Fishman's unexpected education and experience. As an undergrad at Cornell University, he studied Philosophy and Psychology with a desire to eventually earn his PhD and become a professor. While there, Fishman found himself in a wine appreciation class which quickly changed his course, leading to working a harvest at Wither Hills in New Zealand as well as pulling time at multiple wine shops from Vancouver to Washington DC and Los Angeles. With a BA in Philosophy and Psychology from Cornell University and a MA in Social Psychology from the University of British Columbia, it's no wonder Fishman has a knack for "listening" to what each vineyard and vintage brings with it.


LAURO SERVIN , Vineyard Forman
Lauro grew up in Zamora in the state of Michoacan, Mexico, and came to the United States in 1987. He joined his brother, Francisco Servin, at Peter Nissen's vineyard management company. Ironically, Lauro's first job in the U.S. was helping replant what was then the Tula Vista Vineyard, known today as the Donum Ranch. Overseeing the replanting was none other than Anne Moller-Racke, then director of vineyard operations for Buena Vista Winery. 

Lauro worked for Nissen for 11 years, then joined Francisco's vineyard management company for another decade. Former Donum vineyard manager Nabor Camarena approached Lauro about a position as Nabor's replacement. "I said, yes, I certainly know the ranch!" Lauro says. Returning to the vineyard has brought back lots of memories, he says, including when the roof of the old milk barn (now converted into winery offices) blew off and landed in the driveway. Lauro asserts that he learns something new every day now, and he finds the greatest differences in 20 years are equipment improvements, new vine spacings, trellising techniques and plant materials, and an intense focus on details to enhance quality.



Robert Stemmler’s passion for winemaking spans over 40 years. A native of Germany, he completed his formal education in winemaking and viticulture at Bad Kreuznach Wine College. In 1961, he accepted a winemaking position at Charles Krug, one of Napa Valley’s most prominent wineries. He quickly earned a reputation as one of California’s leading winemakers, and that recognition lead him to other renowned wineries including Inglenook Vineyards in Napa Valley and Simi Winery in Sonoma County.

In 1976, he opened his own winery in Sonoma’s Dry Creek Valley.  In 1982, after securing high quality fruit from a Russian River Valley vineyard, he was able to concentrate on his true passion, Pinot Noir. His first release of the wine that would be most identified with him brought him immediate and widespread acclaim.

Robert retired from full-time winemaking in 1989.