Mr. Mark Thornburg is General Counsel and Director of Legal Affairs for Indiana Farm Bureau, Incorporated. He joined Farm Bureau in 1999 as Staff Attorney focusing primarily on land use, natural resource and environmental legal issues affecting agriculture. Currently, he performs corporate general counsel functions, manages the Legal Affairs Team at Farm Bureau and directs the legal component of the organization's public policy and educational efforts. 

Mark previously worked for the Purdue Cooperative Extension Service both as an Extension Educator and as an Extension Staff Specialist. He also briefly provided legal counsel on a contractual basis to the Indiana State Chemist and the Commissioner of Agriculture's Office. In 1992, Mark served a year as USDA Extension Fellow with the National Association of Counties in Washington, D.C., working in their legislative department. 

Mark received his B.S. degree in Agricultural Economics from Purdue, his M.B.A from Ball State University and his Juris Doctor degree from the Valparaiso University School of Law. Mark currently serves as vice-chair and editor of the Agricultural Section of the Indiana State Bar Association and is on the board of directors of the Indiana Agricultural Leadership Institute. He resides in Zionsville with his wife Julie and son Max.