In November 1901, Musser was made president of the 105th Quorum of Seventy, and would later also serve as a high councilor in the Uintah, Wasatch and Granite Stakes (being set apart by president Joseph F. Smith). "On 16 February 1903 Patriarch John M. Murdock ordained Musser to the office of High Priest.
In November 1901, Musser became president of the 105th Quorum of Seventy and later served as a high councilor in the Uintah, Wasatch, and Granite Stakes under President Joseph F. Smith's leadership. He was ordained as High Priest by Patriarch John M. Murdock on February 16, 1903.