PHILADELPHIA, PA.- The Rosenbach Museum & Library in Philadelphia announces the acquisition of two artistically and culturally significant portraits originally belonging to the Gratz Family, a prominent early American Jewish family who lived in Philadelphia. The paintings include a visually stunning portrait of philanthropist, social activist, and Jewish leader Rebecca Gratz painted in 1831 by Thomas Sully, and a portrait of her brother, Joseph Gratz by George Peter Alexander Healy (not dated). Both portraits were originally painted in Philadelphia, and documentation suggests the portrait of Rebecca Gratz has not been displayed on public view since 1922 and the portrait of Joseph Gratz has never been exhibited. After two generations apart, the portraits of Rebecca and Joseph will join portraits of other Gratz family members in the Rosenbachs collection, on display to the public beginning Tuesday, November 9. These new