William Joseph Welsh, 92, died July 13. He worked for 41 years at the Library of Congress. When he retired in 1988, he had served for 12 years as Deputy Librarian of Congress, where he accomplished a great deal including his roles in the renovation of the historic Jefferson Building, the development of a process to lengthen the lifespan of books by deacidifying the paper on which they were printed, supporting an intern program to develop new leaders, and overseeing a pilot project on the use of optical disk technology to store pictorial and textual material in compact formats. In 1971 he was awarded the American Library Association’s Melvil Dewey Medal for his imaginative leadership and wide-ranging contributions to librarianship. In 1983, he was presented with LC’s Distinguished Service Award.