Jørgen Christian Dreyer was a Norwegian-born American sculptor. He emigrated to the United States in 1903 and worked as a professor of sculpture at the Kansas City Art Institute from 1907 to 1909. In his career Dreyer created a number of monumental sculptures, some of which are located in Kansas City, Missouri. His major works include: Life Drift; The Goddess of Dawn; Sphinxes (pair); Biology and Chemistry ; Lionesses (pair); The Message ; Bust of Sir Carl Busch; Mercury, god of commerce; and Bust of Major General Sterling Price.

Archibald Willingham DeGraffenreid Clarendon Butt was an American Army officer and aide to presidents Theodore Roosevelt and William Howard Taft. After a few years as a newspaper reporter, he served two years as the First Secretary of the American embassy in Mexico. He was commissioned in the United States Volunteers in 1898 and served in the Quartermaster Corps during the Spanish–American War. After brief postings in Washington, D.C., and Cuba, he was appointed military aide to Republican presidents Roosevelt and Taft. He was a highly influential advisor on a wide range of topics to both men, and his writings are a major source of historical information on the presidencies. He died in the sinking of the British liner Titanic in 1912.