Daniel Allen Butler (born January 24, 1957) is an American author and playwright on historical topics, particularly maritime history. The Washington Times described him as a "steamship nut". Butler was educated at Hope College, Grand Valley State University, and the University of Erlangen.
Unsinkable provides a fresh look at the Titanic’s incredible story. Following the great ship from her conception to her fateful collision to the ambitious attempts to salvage her right up to the present day, Daniel Allen Butler draws on thirty years of research to explore the tragedy and its aftermath in remarkable depth and detail.