Dr. Marlow Sloan

Dr. Marlow Sloan, 86, beloved doctor, husband, father, grandfather, friend, and animal lover, a native of Pueblo, and a longtime resident of Pueblo and Westcliffe, passed away peacefully in his sleep on Aug. 11, 2025, at his home in Westcliffe. He was 86 years old.

Marlow is best known for his work as an oncologist in Pueblo from 1982 to 2004, and as the founding medical director of Sangre de Cristo Hospice, where he worked from 1985 to 2017. Marlow is remembered fondly for the time, care, patience, respect, and attention he paid to his patients, both in his medical practice and in hospice. Marlow was famous for his dry, quick wit and excellent bedside manner. He was a mentor and guidepost to decades-worth of healthcare professionals, whom he interacted with in Pueblo and Cañon City. His greatest influence is felt through the many years of work he put in with Sangre de Cristo Hospice, helping those suffering life-ending diseases and conditions manage their illness, pain, and final days.

Marlow was born in Pueblo on April 1, 1939, to Elvin and Isabelle Sloan. He grew up on the city’s East Side and graduated in 1957 from Centennial High School, where he excelled as a student and an athlete. He graduated from the University of Denver in 1961 and then from medical school at the University of Colorado in 1965. He also served a short stint with the U.S. Air Force but was never deployed.

Marlow chose oncology/hematology as his medical specialties. In April 1965, in Denver, he married Mary Ann (Casey). Their first child, Jeff, was born in 1967. Their second child, Jenna, followed in 1969, and their third child, Margo, was born in 1973. Marlow practiced oncology/hematology and internal medicine in Albuquerque, Fort Collins, and then back in Albuquerque in 1976, where he worked for several years at Lovelace Medical Center. In 1979, Marlow and Mary Ann divorced.

Later that year, he married Lana (Walker). In 1982, Marlow was recruited by Parkview Hospital to return to Pueblo, his hometown. He set up practice in an office at 15th and Grand for several years before relocating to a clinic at St. Mary-Corwin Hospital. During his work at Parkview, Marlow, because many of his patients suffered life-ending cancers, became a close colleague of Joni Fair, who worked at the hospital to aid patients suffering from terminal conditions.

In 1985, Marlow, Lana, Joni Fair, and Wayne Fair founded Sangre de Cristo Hospice in Pueblo, the first hospice in Southern Colorado and one of the first in the state. Marlow served as medical director at Sangre de Cristo – a job he held for more than 30 years. Marlow retired from his oncology practice in 2004 and ended his hospice career in 2017. Marlow and Lana divorced in 2006. Marlow subsequently married Jann (Schoenholtz). Marlow and Jann enjoyed many years together in Westcliffe with their bevy of cats, dogs, mules, donkeys, and llamas.

Marlow is preceded in death by his parents; brothers, Vince (Claire) Sloan and Alva (Millie) Sloan; and sister, Irma (Blair) Livingstone. He is survived by his wife Jann; his children, Jeff (Sheila) Sloan, Jenna (Troy) Jones, and Margo (Beau) Ellis; plus grandchildren, Thomas, Jacob, Isaac, Caroline, Jack, Max, Quinn, and Darby; plus many much-loved nieces and nephews. Marlow is remembered fondly for his wry wit, occasional sarcasm, intelligence, warmth, and love of animals. He was an avid communicator later in his life, famous for texting family and friends a variety of photos, TikToks, articles, and his views of the larger world.

A service will take place at a later date. In lieu of flowers, please make a donation to Long Hopes Donkey Shelter, 66 North Dutch Valley Rd., Bennett, CO 80102; or Colorado Bullies and More Rescue, 2405 Colorado Rd. 110, Rye, CO 81069. Online condolences at www.MontgomerySteward.com.