Transportation. Wagons and wagon trains Story of wagon train led by Cal Hubbard, taking route known as "El Camino del Diablo" through Mexico and southwestern Arizona. True West v.7 #2 Whole #36 Nov.- Dec., 1959 p.7-8 Biog. of Cal Hubbard, wagon master who led group to California in 1849 despite great difficulties. True Western Adventures v.4 #20 June, 1961 p.28-37 How covered wagon helped win West. American Heritage v.13 #2 Feb. 1962 4-17 t.