The Thomas Ranch is a family owned-and-operated cow/calf operation. Starting back in 1902, 10 years prior to the Arizona Territory becoming the State of Arizona, the name "The Thomas Ranch" was registered by Edward E. Thomas, in Bisbee, Arizona, which was incorporated some months earlier in January 1902. The ranch has been family owned and operated ever since. It is located in the foothills of the Mule Mountains, between the cities of Bisbee, Sierra Vista, and Tombstone, in Cochise County. The current owners are Albert and Alice Thomas; Albert is Edward E. Thomas' grandson.
The Lazy A, Lazy T, Cattle Brand and the E, Lazy T, Horse Brand were both registered with the State of Arizona, and are still being used today.