Glendale, CA: Arthur H. Clark, 1965.
First Edition. Hardcover. Fine. Western Frontiersmen Series XII. 268 pp, with frontispiece, illustrations, appendix, bibliography, index. Fine copy, in original plain paper dust jacket, inscribed on the front free endpaper "For Bill Mason, with best wishes and deep appreciation for your help, Sincerely, Iris H.W. Engstrand." As described in the publisher's prospectus (not present here), William Wolfskill was a Missouri fur trapper and Santa Fe trader who explored uncharted areas of the Southwest before settling in Los Angeles, where he pioneered in numerous agricultural, economic and cultural projects.