Cassius McDonald Barnes (1845–1925)

New York native and Civil War veteran Cassius Barnes was a prominent businessman and politician in both Arkansas and Oklahoma. He was active in Republican Party politics, holding both local and federal offices. He served as the city clerk of Little Rock (Pulaski County) and as a chief deputy U.S. marshal for the Western and Eastern Districts of Arkansas. He was named the territorial governor of Oklahoma by President William McKinley in 1897.

Cassius McDonald Barnes was born on August 25, 1845, in Livingston County, New York, the oldest of five children of dentist and farmer Henry Hogan Barnes and homemaker Cemantha Boyd Barnes. When Barnes was about four years old, his family moved to Albion, Michigan, where he spent most of his youth on the farm. Barnes received a basic education in the local schools but exhibited an interest in telegraphy. By age nine, he began working part time for the Western Union Telegraph Company in Kalamazoo. It was under this company’s employ that he learned telegraphy. He later worked for Western Union in St. Louis, Missouri, and for the Ohio, Mississippi Railroad Company and the Pacific Railroad Company.

By 1857, Barnes was operating the telegraph for Western Union in Leavenworth, Kansas. He remained there until the Civil War started in 1861. Barnes returned to Michigan, where at age sixteen he enlisted at Battle Creek into an engineer regiment. Once his telegraphy skills were discovered, he was assigned to the Military Telegraph Corps as an operator. He briefly served as the private secretary of General Nathaniel Lyon. After Lyon’s death in battle in August 1861 in Missouri, Barnes was transferred and served under the command of General William T. Sherman. By the end of the war, Barnes was first stationed in Little Rock and then later in Fort Smith (Sebastian County), where he assisted in phasing out military operations at the end of the war. He was mustered out of service in 1866.

After leaving the service, he returned to Little Rock, where he established himself as a successful businessman. In 1868, he advanced his social standing by marrying Mary Elizabeth Bartlett, daughter of Liberty Bartlett, who had been a prominent circuit judge. The couple had three sons and a daughter.

Barnes was actively involved in Republican politics and, shortly after the war, served three consecutive terms as the Little Rock city clerk. In 1872, he accepted an appointment to the staff of the governor as assistant adjutant general. Barnes was also the state commander of the Grand Army of the Republic (GAR), a powerful Union veteran organization.

By the mid-1870s, Barnes had moved to Fort Smith, where he accepted the position of Assistant Collector of Internal Revenue. By this time, Barnes’s alliance with powerful Republican politician Powell Clayton had led to more lucrative positions. From 1876 to 1879, he was chief deputy U.S. marshal for the U.S. District Court for the Eastern District of Arkansas. From 1879 to 1889, he served in the same position in the Western District under the famous “hanging judge” Isaac Parker. Perhaps his greatest claim to fame was in 1883, when he assisted in transporting outlaw Belle Starr to the Detroit House of Corrections after her conviction for horse theft.

After the election of Benjamin Harrison as president in 1888, Barnes moved to the rapidly developing territory of Oklahoma. Harrison appointed him as the receiver for the U.S. Land Office in Guthrie, the territorial capital. When Grover Cleveland returned to the presidency in 1893, Barnes was removed from his federal position.

Believing that Oklahoma offered a bright future, he remained in Guthrie. In 1893, he was admitted to the bar and began to practice law. He was a charter member of both the Guthrie Building and Loan Association and Guthrie Board of Trade, as well as an active member of the Guthrie Episcopalian Church. Barnes remained active in veterans’ affairs and was chosen as the first commander of the Oklahoma territory Grand Army of the Republic. Barnes had previously been the commander of the Arkansas GAR and was also a Master Mason.

In 1894, he was elected as a Republican to the Oklahoma Territorial House of Representatives—one of the few Oklahoma Republicans reelected in the divisive elections across the United States. At one time, he served as speaker of the legislature.

Barnes worked to align Oklahoma Republicans with the national party and William McKinley, although his strong support for the national party platform and his opposition to free silver contributed to his failure to win election as a delegate to the national convention. However, Republican leader Mark Hanna communicated to Barnes that if McKinley were elected, the president would appoint Barnes to the position of Oklahoma territorial governor.

After McKinley was elected, in-party fighting began over the governor’s office almost immediately. However, McKinley fulfilled Hanna’s promise and appointed Barnes to the office, with Barnes being sworn in on May 24, 1897.

Republican Party bickering, much of it over party patronage and the issue of Oklahoma statehood, made it difficult for Barnes to achieve much as governor. Barnes worked for several social issues, including the establishment of a mental hospital, a deaf and mute school, a prison, and two industrial schools. He was able to accomplish many of his goals by working with private companies to fund the programs. Still, the in-party squabbling hampered any of the governor’s program goals. In an attempt to restore Republican Party unity, McKinley chose not to reappoint Barnes in 1901.

Barnes continued to make his home in Guthrie, where he practiced law and remained active in local politics. He served two terms as mayor of Guthrie. In 1910, two years after his first wife died, he married Mary Forney and moved to Kansas and then New Mexico. He died there on February 18, 1925. His remains were returned to Guthrie, Oklahoma, and buried in the Summit View Cemetery next to his first wife.

For additional information:
“Cassius Barnes Weds in Chicago.” Tulsa World, August 12, 1910, p. 1.

“Cassius M. Barnes Fourth Executive Answers Last Call at 82.” Pawhuska Daily Journal, February 20, 1925, p. 8.

Cassius McDonald Barnes. Find a Grave. https://www.findagrave.com/memorial/26796599/cassius-mcdonald-barnes (accessed March 31, 2026).

Everett, Diana. “Cassius McDonald Barnes.” Encyclopedia of Oklahoma History and Culture. https://www.okhistory.org/publications/enc/entry?entry=BA021 (accessed March 31, 2026).

“Thousands Pay Final Tribute.” Tulsa World, February 22, 1925, p. 4.

Williams, Nudie E. “Cassius McDonald Barnes, Governor of Oklahoma, 1891–1901.” In Oklahoma’s Governors, 1890–1907: The Territorial Years, edited LeRoy H. Fischer Oklahoma City: Oklahoma Historical Society, 1975. Online at https://gateway.okhistory.org/ark:/67531/metadc2099427/m1/1/ (accessed March 31, 2026).

Mike Polston
CALS Encyclopedia of Arkansas