Oklahoma School for the Deaf Oklahoma School for the Deaf Oklahoma School for the Deaf (OSD) is a residential school for the deaf and hard of hearing students ages 2 through 18. The school teaches K-12 students in Sulphur, Oklahoma. The first school in what would later become the state of Oklahoma to give instruction to deaf children was at Fort Gibson.This school, started by a Mrs. Lowery, provided for the education of blind Indian children of the Five Civilized Tribes. Later, deaf children were admitted. In 1898, Mr. and Mrs. Ellsworth Long started a school for deaf children in Guthrie,then the capital of Oklahoma
Oklahoma State Highway 325 to persist on the state highway map, with the legend "(not on highway system)" and no shields. The old US-64 route to Kenton finally received its present-day designation in 1973, when it was numbered after the already-existing NM 325, which once extended to the Oklahoma state line. Oklahoma State Highway 325 State Highway 325, officially, SH-325, is a state highway in the U.S. state of Oklahoma. SH-325 runs for through Cimarron County, Oklahoma, from the New Mexico border west of Kenton to the traffic circle in Boise City. Along the way it provides access to Black Mesa State Park, near