Susan Jane MacMillan

Susan Jane Aldridge MacMillan, 79, of Lake Bluff, Illinois, passed away peacefully at home on April 30, 2026. Susan was born on February 28, 1947, in Highland Park, Illinois, and was raised in Ravinia. She was the beloved daughter of Alfred and Mabel Aldridge who preceded her in death. Susan attended Ravinia Schools and graduated from Highland Park High School. Susan built a life centered on loving her family, celebrating with friends, and enjoying music, nature, and animals. She worked at the Lake Forest Post Office where she met the love of her life, Charles Cook MacMillan, of Lake Forest. Susan also worked at Jewel Foods, the Shields Township Assessor’s Office, and proudly owned her own deli. Her business brought her tremendous joy, allowing her to cook, create, and share her gift of bringing people together through food within the Lake Forest community. Susan was a lover of music and encouraged this appreciation in both of her children. Susan and Charlie proudly instilled the MacMillan clan’s Scottish values into their children’s lives and supported their love for music through Midlothian Scottish Pipe Band. Susan was always on the sidelines, cheering on MSPB at many Highland Games around the U.S., Canada, and even in Scotland at the World Pipe Band Championships at Glasgow Green. Whether it was listening to her children practice the bagpipes, singing along with Frank Sinatra, or playing Christmas music in July, Susan always had a soundtrack playing in the background. Susan also had a deep love for cooking, gardening, and entertaining. She enjoyed reading her cookbooks and magazines, spending time with family and friends, and caring for her beloved dogs—as well as the many neighborhood dogs that she always had an extra treat for. Her garden was beautiful and a source of great pride. She loved watching birds and always had a rare variety of very well-fed birds visiting her home. Susan found great peace in nature, a love that was cultivated by her father from a very young age. Above all, Susan found her greatest happiness in her grandchildren. Her face would light up at the sound of them rushing through the door, eager to share their latest stories, achievements, and everyday moments during their visits to Nana’s house that was just up the street. Susan was preceded in death by her devoted husband of 48 years Charles Cook MacMillan. She is lovingly survived by her children, Angus (Monica) MacMillan and Mary (Chad) Corpier; her brother, Alfred Aldridge and her cherished grandchildren, Charles Liam MacMillan, James Griffin MacMillan, Connor Mac Corpier, Ella Susan Corpier, and Nancy Ann Corpier. A Celebration of Life will be held on Saturday, May 23, 2026 from 2:00 to 5:00 P.M. at Gus’s Grille, 28800 N. Waukegan Road, Lake Bluff, IL. Interment will be private. Susan was an active supporter of The Parkinson’s Foundation and The Anti-Cruelty Society. In lieu of flowers, please consider a donation to www.parkinson.org or www.anticruelty.org

Susan Jane MacMillan

February 28, 1947 - April 30, 2026