Kathleen (Katie) Charlotte Hoertkorn passed away peacefully, surrounded by loved ones, on June 2, 2026, at her home in Ross, California, after a decade-long battle with cancer that she met with remarkable determination, courage, and quiet grace. She was born on September 14, 1950, in Milwaukee, Wisconsin, to Nancy and Averill Koss. Katie married Richard C. Hoertkorn on March 15, 2003.
She was preceded in death by her parents, Nancy and Averill Koss. She is survived by her husband, Richard; her two daughters, Sarah (Goran) Gjorgjijevski and Mary Ann (Chris) Neumann; five grandchildren, Sadie, Anastacia, Eleanor, Philip, and Alice; three stepdaughters, Caity (Alex), Annie (Matt), and Nicky (Drew); four step-grandchildren, Charlie, Brady, Levy, and Nell, with one on the way; and two brothers, Charles Koss and Hon. Phillip (Mary) Koss, nieces and nephews Emily (Nick) Gellings, Tom (Patsy) Koss, Margaret Koss.
Katie earned a double major in English and Mathematics and a Master of Arts in English at the University of Wisconsin before building an impressive career shaped by her intellectual curiosity and an extraordinary drive to excel. As a young teacher in her early twenties, she helped transform the underperforming Rufus King High School in Milwaukee into a college-bound, International Baccalaureate high school. Both her daughters attended Rufus King (nearly two decades later) as it became the top public high school in Wisconsin. After taking time off to be home with her children, she joined DHL as a local sales representative in 1984 and, through incredible grit, perseverance and talent, rose to the position of Senior Vice President in less than a decade. It was her 15 years at DHL where Katie truly came into her own. The work gave her a deep and lasting sense of self-worth, and the confidence and faith in herself that she carried into every success that followed. She relished the platform her career gave her to travel the world (literally) and discover other cultures.
After moving to California in 1994 for DHL, her entrepreneurial spirit and professional expertise in logistics led her to the wine industry in 1998, where she served as CEO of Wine.com and was a founder of New Vine Logistics. In this capacity, she designed the first legal online direct-to-consumer distribution model for wine in the United States. Upon retirement, she served her community of Ross as a council member and mayor between the years of 2013 to 2017. She also dedicated her time to the boards of the V Foundation and Saybrook Graduate School. Drawing on a lifetime of sales expertise, she helped her son-in-law, Chris, build his company, Cro Metrics, from the ground up, serving as a consultant and board member whose guidance was instrumental to its success.
Katie’s faith was a steady thread throughout her life. A devoted Episcopalian, she ran the children’s education program at St. Peter’s in Milwaukee, served on vestry in Milwaukee and at St. John’s in Ross, and was a faithful member of the altar guild at every parish she attended. She carried the same devotion into her personal traditions. She was the Queen of Christmas! A self-taught gourmet cook inspired by Julia Child, she became the consummate entertainer hosting elegant gatherings for family and friends. She was an avid gardener and a voracious reader who closely followed current events and politics, both national and local. Though she had no inclination toward athletic pursuits, she took up skiing with steely determination in her fifties, out of love for her husband Rich’s passion for the sport. Katie and Rich built their dream house in Snowmass where the entire family gathered for ski vacations for over 20 years.
Katie was brave, determined and tenacious, but also incredibly warm, sincere, and generous with her time, her wisdom, and her love. After surviving multiple recurrences of cancer, she became a resource and guide through the Anal Cancer Foundation for other women navigating the disease. Throughout her professional life she mentored women building their careers and took delight in their successes. She attempted to find the perfect gift for her family and friends at every turn, and she always ensured that everyone around her was seen, heard, and loved. She was passionate and capable of moving mountains; when her heart was set on something, she was guaranteed to be victorious. She will be remembered and cherished forever by all who had the grace and luck to love her.
The Song of Solomon calls love strong as death, a flame that many waters cannot quench. Katie’s flame warmed everyone fortunate enough to come near it, and it burns still in each life she touched. Though she has passed from our sight and is irreplaceable, the love that bound her to her family and friends remains whole and unbroken, for love is stronger than death.