EXHIBIT 24
POWER OF ATTORNEY
The undersigned hereby appoints ROBERT M. TAROLA, MARK A. SHELNITZ, and MICHAEL W. CONRON as his true and lawful attorneys-in-fact for the purpose of signing the Annual Report on Form 10-K of W. R. GRACE & CO. for the year ended December 31, 2007, and all amendments thereto, to be filed with the Securities and Exchange Commission. Each of such attorneys-in-fact is appointed with full power to act without the other.
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| /s/ John F. Akers |
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| John F. Akers |
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Dated: February 28, 2008
POWER OF ATTORNEY
The undersigned hereby appoints ROBERT M. TAROLA, MARK A. SHELNITZ, and MICHAEL W. CONRON as his true and lawful attorneys-in-fact for the purpose of signing the Annual Report on Form 10-K of W. R. GRACE & CO. for the year ended December 31, 2007, and all amendments thereto, to be filed with the Securities and Exchange Commission. Each of such attorneys-in-fact is appointed with full power to act without the other.
| /s/ H. Furlong Baldwin |
| H. Furlong Baldwin |
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Dated: February 28, 2008
POWER OF ATTORNEY
The undersigned hereby appoints ROBERT M. TAROLA, MARK A. SHELNITZ, and MICHAEL W. CONRON as his true and lawful attorneys-in-fact for the purpose of signing the Annual Report on Form 10-K of W. R. GRACE & CO. for the year ended December 31, 2007, and all amendments thereto, to be filed with the Securities and Exchange Commission. Each of such attorneys-in-fact is appointed with full power to act without the other.
| /s/ Ronald C. Cambre |
| Ronald C. Cambre |
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Dated: February 28, 2008
POWER OF ATTORNEY
The undersigned hereby appoints ROBERT M. TAROLA, MARK A. SHELNITZ, and MICHAEL W. CONRON as her true and lawful attorneys-in-fact for the purpose of signing the Annual Report on Form 10-K of W. R. GRACE & CO. for the year ended December 31, 2007, and all amendments thereto, to be filed with the Securities and Exchange Commission. Each of such attorneys-in-fact is appointed with full power to act without the other.
| /s/ Marye Anne Fox |
| Marye Anne Fox |
Dated: February 28, 2008
POWER OF ATTORNEY
The undersigned hereby appoints ROBERT M. TAROLA, MARK A. SHELNITZ, and MICHAEL W. CONRON as his true and lawful attorneys-in-fact for the purpose of signing the Annual Report on Form 10-K of W. R. GRACE & CO. for the year ended December 31, 2007, and all amendments thereto, to be filed with the Securities and Exchange Commission. Each of such attorneys-in-fact is appointed with full power to act without the other.
| /s/ John J. Murphy |
| John J. Murphy |
Dated: February 28, 2008
POWER OF ATTORNEY
The undersigned hereby appoints ROBERT M. TAROLA, MARK A. SHELNITZ, and MICHAEL W. CONRON as his true and lawful attorneys-in-fact for the purpose of signing the Annual Report on Form 10-K of W. R. GRACE & CO. for the year ended December 31, 2007, and all amendments thereto, to be filed with the Securities and Exchange Commission. Each of such attorneys-in-fact is appointed with full power to act without the other.
| /s/ Paul J. Norris |
| Paul J. Norris |
Dated: February 28, 2008
POWER OF ATTORNEY
The undersigned hereby appoints ROBERT M. TAROLA, MARK A. SHELNITZ, and MICHAEL W. CONRON as his true and lawful attorneys-in-fact for the purpose of signing the Annual Report on Form 10-K of W. R. GRACE & CO. for the year ended December 31, 2007, and all amendments thereto, to be filed with the Securities and Exchange Commission. Each of such attorneys-in-fact is appointed with full power to act without the other.
| /s/ Christopher J. Steffen |
| Christopher J. Steffen |
Dated: February 28, 2008
POWER OF ATTORNEY
The undersigned hereby appoints ROBERT M. TAROLA, MARK A. SHELNITZ, and MICHAEL W. CONRON as his true and lawful attorneys-in-fact for the purpose of signing the Annual Report on Form 10-K of W. R. GRACE & CO. for the year ended December 31, 2007, and all amendments thereto, to be filed with the Securities and Exchange Commission. Each of such attorneys-in-fact is appointed with full power to act without the other.
| /s/ Mark E. Tomkins |
| Mark E. Tomkins |
Dated: February 28, 2008
POWER OF ATTORNEY
The undersigned hereby appoints ROBERT M. TAROLA, MARK A. SHELNITZ, and MICHAEL W. CONRON as his true and lawful attorneys-in-fact for the purpose of signing the Annual Report on Form 10-K of W. R. GRACE & CO. for the year ended December 31, 2007, and all amendments thereto, to be filed with the Securities and Exchange Commission. Each of such attorneys-in-fact is appointed with full power to act without the other.
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| /s/ Thomas A. Vanderslice |
Thomas A. Vanderslice |
Dated: February 28, 2008