After making a fortune in financial services, he funded the arts and made historical artifacts and documents widely available to the public. Polonsky, Leonard (1927-2025), Deaths (Obituaries), Philanthropy, Culture (Arts), Libraries and Librarians, New York Public Library, Polonsky Foundation, Polonsky Shakespeare Center After making a fortune in financial services, he funded the arts and made historical artifacts and documents widely available to the public. NYT > Business