03/30/2026
The History of Boulder County Rests Here: John D. Slye
John D. Slye was born on March 27, 1885, in Manchester, Iowa, to Luman and Elizabeth Jane Williamson Schley. When he and his siblings were children, the family moved to Boulder, Colorado. At about that same time, the family changed the spelling of their name to be more American, but the pronunciation remained the same. Luman and Elizabeth spent the rest of their lives in Boulder and are buried together in Green Mountain Cemetery.
After completing his secondary education in the local school, John enrolled at the University of Colorado in Boulder to study engineering, graduating in the class of 1914. Following graduation, he worked as an engineer with the Grant-Smith Contracting Company. As the First World War approached, he enlisted in the United States Army, and in October of 1918, he was commissioned as a second lieutenant of the engineering corps at Camp Douglas, Utah. Within days he was promoted to first lieutenant and assigned to the 70th Engineers under the command of Major Percy Ashmead to work on the construction of an army general hospital at Fort Douglas. A month later, he was transferred to Camp Humphries, Virginia, for more advanced training, along with several other student officers.
On December 18, 1920, John married Ursula Patton, a native of Boulder. He spent the remainder of his career working for the U.S. Government as a civil engineer in one position or another. He spent time in Denver, Santa Fe, New Mexico, Wyoming, and Arizona. Everywhere he and Ursula lived, they were heavily involved in community organizations such as the Scouts and the PTA, with both serving as officers at one time or another.
For the last several years of his career, he worked for the United States Bureau of Public Roads, serving as District Engineer for the State of Wyoming. He retired in the fall of 1952 due to declining health. John died on January 15, 1953, in Mesa, Arizona, at 67 years of age. His body was brought back to Boulder, Colorado, where he was laid to rest in the family plot near his parents in the peaceful Green Mountain Cemetery. Ursula lived another seventeen years before joining her husband there. She passed on May 15, 1970, in Los Angeles, California, where she had moved to be closer to family.