Stephen “Mac” Michael McCarthy, born December 19, 1950 in Wilmette, Illinois, died October 6, 2021 after complications from his treatment of cancer. He was the son of the late Kathryn Grant McCarthy and the late Jerome Callahan McCarthy. Stephen is survived by his son Callahan McCarthy, his partner Jane Walther, and his brothers Brian Grant (Keta Seitz), and J. Gregory McCarthy. He is also survived by his niece and nephews, Niall, Aine, Emmett McCarthy; and Liam McCarthy; and grandnieces and grandnephew. He was predeceased by his brother Jerry McCarthy Junior and his nephew Quentin Seitz McCarthy. Mac was born and raised in Wilmette, Illinois. He graduated from Loyola Academy and the University of Michigan where he was a division I swimmer. He traded commodities at the Chicago Board of Trade for over 40 years. Mac made his dreams a reality in establishing Frenchman’s Gulch Winery in Ketchum, Idaho. He loved to gather people together to celebrate the joys of life with food and wine. He found joy and laughter through many athletic activities in nature such as fishing, swimming, surfing, sailing, biking, hiking and skiing. He was a loving, joyful and generous father, partner, uncle, brother, vintner and friend. Celebration of the Life of Stephen “Mac” McCarthy will be held Saturday, November 13, 2021, 5:00 p.m. to 7:00 p.m. at the Sun Valley Club (Also known as “Nordic Center”) 200 Trail Creek Road, Sun Valley, Idaho 83353 (phone number: 208-622-2919) In lieu of flowers, donations may be made to: Silver Creek Preserve in the name of Stephen "Mac" McCarthy at The Nature Conservancy 116 1st Avenue North Hailey ID 83333 DONATE ONLINE Info: donnellanfuneral.com or (847) 675-1990