Complex sentence: David Anton Randall (5 April 1905-25 May 1975) was an American book dealer, librarian and scholar who was head of Scribner's rare book department from 1935 to 1956, librarian of the Lilly Library and Professor of Bibliography at Indiana University.
Split into simpler sentences: David Anton Randall (5 April 1905-25 May 1975) was an American book dealer, librarian and scholar. He was head of Scribner's rare book department from 1935 to 1956, librarian of the Lilly Library and Professor of Bibliography at Indiana University.