Jarold Callahan, Yukon, Okla., was born on a farm and ranch in Welch, Okla., and graduated as one of the top 10 students in the College of Agriculture at Oklahoma State University (OSU).
Upon graduation, he became an instructor at Northeastern Oklahoma A&M. He received his master’s degree in agriculture from the University of Arkansas at Fayetteville. In 1981 he joined the faculty at OSU and was an assistant professor in the animal science department, where he taught several courses and coached the livestock judging team.
In 1991 Callahan became the executive vice president of the Oklahoma Cattlemen’s Association. He joined Express Ranches in 1996 as the chief operations officer and is now president of Express Ranches.