Jack, the Young Trapper is the fifth in the series of seven volumes of Jack, The Young Man. Jack Danvers, a New York teen embarks on adventures that entertain, enthrall, and educate. This time, Jack's friend and mentor Hugh Johnson teaches him some of the ways a frontiersman survived in the wilds of Colorado.
George Bird Grinnell (September 20, 1849 April 11, 1938) was an American anthropologist, historian, naturalist, and writer. Grinnell was born in Brooklyn, New York, and graduated from Yale University with a B.A. in 1870 and a Ph.D. in 1880. Originally specializing in zoology, he became a prominent early conservationist and student of Native American life. Grinnell has been recognized for his influence on public opinion and work on legislation to preserve the American bison. Mount Grinnell is named after Grinnell.