Stanley Glenn Todd Jr. died peacefully at home on June 3, 2021 after a long illness. Stan was born May 23, 1936 in Great Falls, MT to Stanley Glenn Todd and Elsie (Snyder) Todd. When he was nine months old, his father died in an accident, and he and his mother returned to Livingston.A 1954 graduate of Park High School, Stan earned his Bachelor's and Master's degrees from Montana State University, and, in 1973, his PhD in geology from Washington State University. Stan put himself through college working as a fishing guide for Pat Barnes out of West Yellowstone, MT.Upon graduation, Stan began working as an exploration geologist for Johns-Manville Corp. Stan led a great team that discovered and mapped what is now the J-M Reef, which led to the development of the Stillwater Mining Company, one of only three mines in the world containing platinum-palladium group minerals (PGMs), and the only one in the US. Stan was proud of his role in the discovery of the J-M Reef, and proud that the mine now contributes over $3 billion to Montana's economic output each year.In 1978-1979, Stan was invited to be a guest scientist at the Carnegie Institution Geophysical Lab in Washington, DC. In 2020, Stan was the recipient of the prestigious Uuno Sahinen Silver Medallion from the Montana Bureau of Mines and Geology at Montana Tech, acknowledging his "outstanding contributions in understanding and development of energy, mineral, or groundwater resources in Montana." After retiring from Johns-Manville, Stan began a second career at IDS (now Ameriprise) as a financial advisor in Billings and Livingston, until his full retirement. In 1989 Stan and Kate moved from Billings to Livingston, where Stan served as a Trustee of the Livingston Depot Foundation.Stan met his wife Kathryn (Jansen) Todd in Big Timber in 1989, and knew she was "the one." They were married in 1993, and shared 32 beautiful years together. They loved to entertain and hosted many wonderful gatherings at their home on the Yellowstone River.Stan loved hiking, fishing, camping, working in his shop, traveling with Kate in their camper van, "Dudley", Bluegrass music - and ice cream.Stan was preceded in death by his father, Stanley G. Todd, his mother, Elsie Todd Miles, his stepfather, Daniel Nelson Miles, and his step-brother, Arthur (Bud) Miles. Stan is survived by his wife, Kate, his cousins and their spouses Gene (Marion) Todd, and Joyce (Don) Rumsfeld, step-nieces and nephews Dan (Rita) Miles, Bonnie Miles Harry (Lee), and Jim Miles. He is also survived by his half-brother, Milo David Miles.In lieu of flowers, memorials may be made to the Livingston Depot Foundation, the Friends of the Yellowstone Gateway Museum, or Livingston Health Care Hospice. If made after July 1, 2021 contributions to either museum will qualify for matching funds under the 2021 Give-A-Hoot fundraising campaign.Stan's funeral and interment will be at Mountainview Cemetery in Big Timber, Montana, on Saturday, June 12 at 11:00 a.m.