Complex sentence: Margaret Florence Herrick (September 27,1902June 21,1976), also known professionally as Margaret Gledhill, was the librarian and executive director of the Academy of Motion Picture Arts and Sciences library, which in 1971 was named the Margaret Herrick Library in her honor.
Split into simpler sentences: Margaret Florence Herrick (September 27,1902June 21,1976), also known professionally as Margaret Gledhill, was the Executive Director of the Academy of Motion Picture Arts and Sciences. The academy's library in 1971 was named the Margaret Herrick Library in her honor.