David Hackett Fischer (born December 2, 1935) is University Professor and Earl Warren Professor of History at Brandeis University. Fischers major works have .\rbr\rbrDavid Hackett Fischer (born December 2, 1935) is University Professor and Earl Warren Professor of History at Brandeis University. Fischers major works have .\rbr\rbrDavid Hackett Fischer (born December 2, 1935) is University Professor and Earl Warren Professor of History at Brandeis University. Fischers major works have.