The papers of Boleslaw “William” Boreysza, a librarian-cataloger, who served in the Hoover Institution Library for more than thirty years until his retirement in 1990, have been added to the holdings of the Hoover Institution Archives. Boreysza (1921-2002) known as Bolek to his Polish friends and as Bill to his coworkers, was a well-known figure in the Polish émigré community of Northern California. Today readers can see a lightly penciled WB inside the cover of the many thousands of Hoover books that he cataloged over the years. His quiet profession contrasted with the tumultuous history that swept him up in his younger years, when he participated in and was a witness to the events in Poland, Soviet Russia, the Middle East, and Italy in World War II.