2005 Overholt Drainage School, March 7-11, Waterman Agricultural and Natural Resources Lab, The Ohio State Univeristy
2004 Overholt Drainage School, March 15-19, Waterman Agricultural and Natural Resources Lab, The Ohio State Univeristy
2003 Overholt Drainage School, March 17-21, Waterman Agricultural and Natural Resources Lab, The Ohio State University
2002 Overholt Drainage School,
2001 Overholt Drainage School,
2000 Overholt Drainage School, March 17-21, Washington Courthouse,
Fayette County, Ohio
1999 Overholt Drainage School, March 15-19, Archbold, Fulton County, Ohio
(This page is under construction)
