Cashion was named for Roy Cashion of Hennessey, Oklahoma. Roy, a graduate of the Hennessy Class of 1897, had a strong passion and belief in the freedom of the Cuban people. His graduation speech was entitled "Liberty for Cuba". When the territorial governor asked for volunteers, Cashion's name was first one on the list. He passed through this area on his way to join Teddy Roosevelt's Rough Riders in the Spanish–American War. On July 1, 1898, Cashion was killed by a gunshot to the head in the famous charge on San Juan Hill in Cuba. He is believed to be the first Oklahoman to die in battle on foreign soil.