Hanna Valley was named for the Hanna family. Jesse P. Hanna and his five sons and their wives settled in the area in the mid 1850s. The Hannas built the first house in the area despite the threat (and at least one attack) of Comanche Indians.
 
 After the Civil War, county vigilante committees that had formed to fight cattle rustling became banditti themselves, causing the Texas Rangers to enter the area and set things right.
 
 Hanna Valley's first store appeared in 1871 with the post office opening five years later. It was closed in 1882, but reopened two years later. The population was fifty then and the town was notified by postal authorities they needed to rename their post office since another community was receiving mail under the name Hanna Valley.
 
 Regency was chosen and by 1895 the town had a population of 200.
 
 Regency had only forty residents from the 20s to the 40s and the post office closed for good sometime in the 30s. The last store closed in 1971.