Our Staff


Doug Carson - Agency Support Specialist - Events - RETIRED

Doug Carson retired from Metro 4/SESARM on July 31, 2020.  Thank you, Doug, for your 11+ years of service to the local and state agencies in the Southeast.






John Hornback - Executive Director.

John Hornback has served as executive director of Metro 4 and SESARM since January 2002. A native of Kentucky, he has a B.S. in Biology and served nearly 25 years in Kentucky’s environmental agencies, first in the water program and later for nearly a decade as director of the Division for Air Quality. He has been a soccer referee for nearly two decades. He has photographed nearly 300 covered bridges across the country. His family includes his wife (since 1977) and two adult sons.  John works with the southeastern agencies on technical and policy issues.