David Hirzel landed at Sky Ranch overlooking Pacifica, California at the end of 30 years of wandering that started in West Virginia, with extended stops in Florida, Virginia, Lake Tahoe and various points between. In the course of time he has published numerous poems, stories and articles, five plays, a first-hand account of an ill-fated 1881 Arctic expedition, but his true calling has always been the history of polar exploration in the "heroic" age. The fascination began with a first reading of Shackleton's Valiant Voyage in 1961, and never ended. One result has been the book "Tom Crean: Sail...