POWER OF ATTORNEY

The undersigned hereby appoints Michael W. Conron,
Sean E. Dempsey,  Eric J. Eller,  and Mark A. Shelnitz
as her true and lawful attorneys-in-fact for the
purpose of signing the Form ID and Statements on
Forms 3, 4 and 5, and all amendments thereto, to be
filed with the Securities and Exchange Commission
with respect to the holdings, and future changes in
such holdings,  for the undersigned in securities of
W. R. Grace & Co., for the term of her directorship
with W. R. Grace & Co.  Each of such attorneys-in-fact
is appointed with full power to act without the others.


/s/ Kathleen G. Reiland
(signature)



Kathleen G. Reiland
(printed name)





Dated: April 26, 2019