Exhibit 99-1 E. Ted Roeding 4525 Dolphin Cay Lane St. Petersburg, FL 33711 July 15, 2002 Mr. Dan Carmichael Ohio Casualty Corporation 9450 Seward Road Fairfield, OH 45014 Dear Dan: For personal reasons I am hereby resigning from the Board of Directors of Ohio Casualty Corporation effective July 15, 2002. Please accept this letter as notice of my resignation. Respectfully, /s/ E. Ted Roeding E. Ted Roeding