Professional Agricultural Services (Pro-Ag) started in 1979 in Beardstown, IL by John V. Hackerson. In 1985, Donald E. Hack...erson joined his brother and together they formed a partnership. In 1987, a second office was opened in Shelby County, IL. The business expanded rapidly and in 1991 the Shelby County business became Pro-Ag Consulting, a sole-proprietary business owned by Don...