Exhibit 24.1

 

The undersigned hereby appoints HUDSON LA FORCE III, MARK A. SHELNITZ, and MICHAEL W. CONRON as his/ her true and lawful attorneys-in-fact for the purpose of signing the Registration Statement on Form S-8 and all amendments thereto, to be filed by W. R. GRACE & CO., a Delaware corporation (the “Corporation”), with the Securities and Exchange Commission with respect to the Corporation’s 2011 Stock Incentive Plan.   Each of such attorneys-in-fact is appointed with full power to act without the other.

 

 

John F. Akers	/s/ John F. Akers
H. Furlong Baldwin	/s/ H. Furlong Baldwin
Ronald C. Cambre	/s/ Ronald C. Cambre
Marye Anne Fox	/s/ Marye Anne Fox
Alfred E. Festa	/s/ Alfred E. Festa
John J. Murphy	/s/ John J. Murphy
Christopher J. Steffen	/s/ Christopher J. Steffen
Mark E. Tomkins	/s/ Mark E. Tomkins
Thomas A. Vanderslice	/s/ Thomas A. Vanderslice
Dated:  April 26, 2011