John Hollis Peacock, M.D., Ph.D., of Reno, passed away on March 4th, 2024 at the age of 85. John was a beloved neurologist who served the Reno and VA community and taught at the UNR Medical School for over 40 years. He was a curious, dedicated researcher who published 42 academic papers and still itched to learn more everyday. He was an avid runner who ran several 100-mile races, including the Western States and the Leadville 100. It was his goal to be in shape for a marathon at all points in time. Despite his many accomplishments, he was a humble family man who loved sharing his infectious curiosity for the world with his family.  He always demonstrated incredible strength and even said in the days leading to his death: “it’s just another marathon.” He is preceded in death by his parents, Eldred and Roberta, and his two sisters, Frankie and Margie. He is survived by his wife, Susan, 5 daughters (Tanya, Katie, Alyssa, Candace, and Brianna), 5 grandchildren, and the Reno community who will dearly miss his care, teachings, and most of all, his quirkiness.