This native stone jail building was begun in 1890, when Quanah became the Hardeman County seat, and completed in March 1891. The lower floor housed the sheriff's office and living quarters, while the second floor held prisoners' cells. Malon C. Owens served the longest term as county sheriff in this building, from 1936 to 1964. Jail facilities were relocated in 1973, and the structure was renovated by community effort in 1976 for use as a museum.