EXHIBIT 24 POWER OF ATTORNEY The undersigned director and/or officer of Ohio Casualty Corporation (the "Company"), does hereby constitute and appoint Dan R. Carmichael and Howard L. Sloneker III, and each of them severally, my true and lawful attorneys and agents, each with full power of substitution, to do any and all acts and things in my name and on my behalf in my capacity as such director and/or officer of the Company and to execute any and all instruments for me and in my name in such capacity, which said attorneys or agents, or either of them, may deem necessary or advisable to enable the Company to comply with the Securities Act of 1933, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission, in connection with the filing of a Registration Statement on Form S-8, with all exhibits thereto, relating to the 1,200,000 shares, $.125 par value, and related Common Share Purchase Rights, of the Company to be offered under the Employment Agreement effective as of December 12, 2000, between the Company and Dan R. Carmichael, including specifically, but without limitation, power and authority to sign for me in my name in such capacity as a director and/or officer of the Company, such Registration Statement and any and all amendments (including post-effective amendments) to such Registration Statement; and I do hereby ratify and confirm all that said attorneys and agents, or their substitute or substitutes, or any of them, shall do or cause to be done by virtue hereof. IN WITNESS WHEREOF, I have hereunto signed my name as of the 16th day of November, 2001. Stanley N. Pontius ------------------------------- Stanley N. Pontius, Chairman of the Board POWER OF ATTORNEY The undersigned director and/or officer of Ohio Casualty Corporation (the "Company"), does hereby constitute and appoint Dan R. Carmichael and Howard L. Sloneker III, and each of them severally, my true and lawful attorneys and agents, each with full power of substitution, to do any and all acts and things in my name and on my behalf in my capacity as such director and/or officer of the Company and to execute any and all instruments for me and in my name in such capacity, which said attorneys or agents, or either of them, may deem necessary or advisable to enable the Company to comply with the Securities Act of 1933, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission, in connection with the filing of a Registration Statement on Form S-8, with all exhibits thereto, relating to the 1,200,000 shares, $.125 par value, and related Common Share Purchase Rights, of the Company to be offered under the Employment Agreement effective as of December 12, 2000, between the Company and Dan R. Carmichael, including specifically, but without limitation, power and authority to sign for me in my name in such capacity as a director and/or officer of the Company, such Registration Statement and any and all amendments (including post-effective amendments) to such Registration Statement; and I do hereby ratify and confirm all that said attorneys and agents, or their substitute or substitutes, or any of them, shall do or cause to be done by virtue hereof. IN WITNESS WHEREOF, I have hereunto signed my name as of the 16th day of November, 2001. Dan R. Carmichael ------------------------------- Dan R. Carmichael, President and Chief Executive Officer, Director POWER OF ATTORNEY The undersigned director and/or officer of Ohio Casualty Corporation (the "Company"), does hereby constitute and appoint Dan R. Carmichael and Howard L. Sloneker III, and each of them severally, my true and lawful attorneys and agents, each with full power of substitution, to do any and all acts and things in my name and on my behalf in my capacity as such director and/or officer of the Company and to execute any and all instruments for me and in my name in such capacity, which said attorneys or agents, or either of them, may deem necessary or advisable to enable the Company to comply with the Securities Act of 1933, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission, in connection with the filing of a Registration Statement on Form S-8, with all exhibits thereto, relating to the 1,200,000 shares, $.125 par value, and related Common Share Purchase Rights, of the Company to be offered under the Employment Agreement effective as of December 12, 2000, between the Company and Dan R. Carmichael, including specifically, but without limitation, power and authority to sign for me in my name in such capacity as a director and/or officer of the Company, such Registration Statement and any and all amendments (including post-effective amendments) to such Registration Statement; and I do hereby ratify and confirm all that said attorneys and agents, or their substitute or substitutes, or any of them, shall do or cause to be done by virtue hereof. IN WITNESS WHEREOF, I have hereunto signed my name as of the 16th day of November, 2001. Terrence J. Baehr --------------------------------- Terrence J. Baehr, Director POWER OF ATTORNEY The undersigned director and/or officer of Ohio Casualty Corporation (the "Company"), does hereby constitute and appoint Dan R. Carmichael and Howard L. Sloneker III, and each of them severally, my true and lawful attorneys and agents, each with full power of substitution, to do any and all acts and things in my name and on my behalf in my capacity as such director and/or officer of the Company and to execute any and all instruments for me and in my name in such capacity, which said attorneys or agents, or either of them, may deem necessary or advisable to enable the Company to comply with the Securities Act of 1933, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission, in connection with the filing of a Registration Statement on Form S-8, with all exhibits thereto, relating to the 1,200,000 shares, $.125 par value, and related Common Share Purchase Rights, of the Company to be offered under the Employment Agreement effective as of December 12, 2000, between the Company and Dan R. Carmichael, including specifically, but without limitation, power and authority to sign for me in my name in such capacity as a director and/or officer of the Company, such Registration Statement and any and all amendments (including post-effective amendments) to such Registration Statement; and I do hereby ratify and confirm all that said attorneys and agents, or their substitute or substitutes, or any of them, shall do or cause to be done by virtue hereof. IN WITNESS WHEREOF, I have hereunto signed my name as of the 16th day of November, 2001. Arthur J. Bennert ------------------------------ Arthur J. Bennert, Director POWER OF ATTORNEY The undersigned director and/or officer of Ohio Casualty Corporation (the "Company"), does hereby constitute and appoint Dan R. Carmichael and Howard L. Sloneker III, and each of them severally, my true and lawful attorneys and agents, each with full power of substitution, to do any and all acts and things in my name and on my behalf in my capacity as such director and/or officer of the Company and to execute any and all instruments for me and in my name in such capacity, which said attorneys or agents, or either of them, may deem necessary or advisable to enable the Company to comply with the Securities Act of 1933, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission, in connection with the filing of a Registration Statement on Form S-8, with all exhibits thereto, relating to the 1,200,000 shares, $.125 par value, and related Common Share Purchase Rights, of the Company to be offered under the Employment Agreement effective as of December 12, 2000, between the Company and Dan R. Carmichael, including specifically, but without limitation, power and authority to sign for me in my name in such capacity as a director and/or officer of the Company, such Registration Statement and any and all amendments (including post-effective amendments) to such Registration Statement; and I do hereby ratify and confirm all that said attorneys and agents, or their substitute or substitutes, or any of them, shall do or cause to be done by virtue hereof. IN WITNESS WHEREOF, I have hereunto signed my name as of the 16th day of November, 2001. Jack E. Brown ------------------------------- Jack E. Brown, Director POWER OF ATTORNEY The undersigned director and/or officer of Ohio Casualty Corporation (the "Company"), does hereby constitute and appoint Dan R. Carmichael and Howard L. Sloneker III, and each of them severally, my true and lawful attorneys and agents, each with full power of substitution, to do any and all acts and things in my name and on my behalf in my capacity as such director and/or officer of the Company and to execute any and all instruments for me and in my name in such capacity, which said attorneys or agents, or either of them, may deem necessary or advisable to enable the Company to comply with the Securities Act of 1933, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission, in connection with the filing of a Registration Statement on Form S-8, with all exhibits thereto, relating to the 1,200,000 shares, $.125 par value, and related Common Share Purchase Rights, of the Company to be offered under the Employment Agreement effective as of December 12, 2000, between the Company and Dan R. Carmichael, including specifically, but without limitation, power and authority to sign for me in my name in such capacity as a director and/or officer of the Company, such Registration Statement and any and all amendments (including post-effective amendments) to such Registration Statement; and I do hereby ratify and confirm all that said attorneys and agents, or their substitute or substitutes, or any of them, shall do or cause to be done by virtue hereof. IN WITNESS WHEREOF, I have hereunto signed my name as of the 16th day of November, 2001. Wayne R. Embry -------------------------------- Wayne R. Embry, Director POWER OF ATTORNEY The undersigned director and/or officer of Ohio Casualty Corporation (the "Company"), does hereby constitute and appoint Dan R. Carmichael and Howard L. Sloneker III, and each of them severally, my true and lawful attorneys and agents, each with full power of substitution, to do any and all acts and things in my name and on my behalf in my capacity as such director and/or officer of the Company and to execute any and all instruments for me and in my name in such capacity, which said attorneys or agents, or either of them, may deem necessary or advisable to enable the Company to comply with the Securities Act of 1933, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission, in connection with the filing of a Registration Statement on Form S-8, with all exhibits thereto, relating to the 1,200,000 shares, $.125 par value, and related Common Share Purchase Rights, of the Company to be offered under the Employment Agreement effective as of December 12, 2000, between the Company and Dan R. Carmichael, including specifically, but without limitation, power and authority to sign for me in my name in such capacity as a director and/or officer of the Company, such Registration Statement and any and all amendments (including post-effective amendments) to such Registration Statement; and I do hereby ratify and confirm all that said attorneys and agents, or their substitute or substitutes, or any of them, shall do or cause to be done by virtue hereof. IN WITNESS WHEREOF, I have hereunto signed my name as of the 16th day of November, 2001. Stephen S. Marcum ---------------------------------- Stephen S. Marcum, Director POWER OF ATTORNEY The undersigned director and/or officer of Ohio Casualty Corporation (the "Company"), does hereby constitute and appoint Dan R. Carmichael and Howard L. Sloneker III, and each of them severally, my true and lawful attorneys and agents, each with full power of substitution, to do any and all acts and things in my name and on my behalf in my capacity as such director and/or officer of the Company and to execute any and all instruments for me and in my name in such capacity, which said attorneys or agents, or either of them, may deem necessary or advisable to enable the Company to comply with the Securities Act of 1933, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission, in connection with the filing of a Registration Statement on Form S-8, with all exhibits thereto, relating to the 1,200,000 shares, $.125 par value, and related Common Share Purchase Rights, of the Company to be offered under the Employment Agreement effective as of December 12, 2000, between the Company and Dan R. Carmichael, including specifically, but without limitation, power and authority to sign for me in my name in such capacity as a director and/or officer of the Company, such Registration Statement and any and all amendments (including post-effective amendments) to such Registration Statement; and I do hereby ratify and confirm all that said attorneys and agents, or their substitute or substitutes, or any of them, shall do or cause to be done by virtue hereof. IN WITNESS WHEREOF, I have hereunto signed my name as of the 16th day of November, 2001. Edward T. Roeding ---------------------------------- Edward T. Roeding, Director POWER OF ATTORNEY The undersigned director and/or officer of Ohio Casualty Corporation (the "Company"), does hereby constitute and appoint Dan R. Carmichael and Howard L. Sloneker III, and each of them severally, my true and lawful attorneys and agents, each with full power of substitution, to do any and all acts and things in my name and on my behalf in my capacity as such director and/or officer of the Company and to execute any and all instruments for me and in my name in such capacity, which said attorneys or agents, or either of them, may deem necessary or advisable to enable the Company to comply with the Securities Act of 1933, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission, in connection with the filing of a Registration Statement on Form S-8, with all exhibits thereto, relating to the 1,200,000 shares, $.125 par value, and related Common Share Purchase Rights, of the Company to be offered under the Employment Agreement effective as of December 12, 2000, between the Company and Dan R. Carmichael, including specifically, but without limitation, power and authority to sign for me in my name in such capacity as a director and/or officer of the Company, such Registration Statement and any and all amendments (including post-effective amendments) to such Registration Statement; and I do hereby ratify and confirm all that said attorneys and agents, or their substitute or substitutes, or any of them, shall do or cause to be done by virtue hereof. IN WITNESS WHEREOF, I have hereunto signed my name as of the 16th day of November, 2001. Howard L. Sloneker III ----------------------------------- Howard L. Sloneker III, Director POWER OF ATTORNEY The undersigned director and/or officer of Ohio Casualty Corporation (the "Company"), does hereby constitute and appoint Dan R. Carmichael and Howard L. Sloneker III, and each of them severally, my true and lawful attorneys and agents, each with full power of substitution, to do any and all acts and things in my name and on my behalf in my capacity as such director and/or officer of the Company and to execute any and all instruments for me and in my name in such capacity, which said attorneys or agents, or either of them, may deem necessary or advisable to enable the Company to comply with the Securities Act of 1933, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission, in connection with the filing of a Registration Statement on Form S-8, with all exhibits thereto, relating to the 1,200,000 shares, $.125 par value, and related Common Share Purchase Rights, of the Company to be offered under the Employment Agreement effective as of December 12, 2000, between the Company and Dan R. Carmichael, including specifically, but without limitation, power and authority to sign for me in my name in such capacity as a director and/or officer of the Company, such Registration Statement and any and all amendments (including post-effective amendments) to such Registration Statement; and I do hereby ratify and confirm all that said attorneys and agents, or their substitute or substitutes, or any of them, shall do or cause to be done by virtue hereof. IN WITNESS WHEREOF, I have hereunto signed my name as of the 16th day of November, 2001. Doanld F. McKee ----------------------------------- Donald F. McKee, Chief Financial Officer