Book, "A Fivesome O'er Nature's Course," 1918

John Burroughs chronicled the Vagabonds' 1918 camping trip through the central Appalachians. The self-named Vagabonds -- Henry Ford, Thomas Edison, Harvey Firestone, and Burroughs -- began taking excursions in 1916 to relax and enjoy each other's company. They were joined by a fifth, Edward Hurley, on this adventure. This Burroughs "mock-up" was later privately published by Firestone under the title Our Vacation Days of 1918.