found: His Sixgun cartridges and loads, c1936.
found: Gun notes, 1995- :v. 1, t.p. (Elmer Keith) jkt. (Elmer Merrifield Keith; d. 02-14-83)
found: Gun notes, 1995-1996:v. 2, p. 229 (Elmer Merrifield Keith (1899-1984); died February 14, 1984, in Boise, Idaho)
found: Keith, Elmer. Keith's rifles for larger game, 1946:title page (Elmer Keith ; edited by Ellis Christian Lenz)
found: Wikipedia, viewed August 26, 2018:Elmer Keith (Elmer Merrifield Keith (March 8, 1899 -- February 14, 1984) was an Idaho rancher, firearms enthusiast, and author. Keith was instrumental in the development of the first magnum revolver cartridge, the .357 Magnum, as well as the later .44 Magnum and .41 Magnum cartridges ... Elmer Keith was born in Missouri but was raised in Montana, Idaho, and eastern Oregon. In the 1930s and early 1940s, he had a ranch on the North Fork of the Salmon River near Salmon, Idaho. In the late 1940s, Elmer and Loraine left the ranch and moved into the town of Salmon....) Du https://en.wikipedia.org/wiki/Elmer_Keith
found: Sixgunner.com, viewed August 26, 2018:Elmer Keith: 1899-1984, by John Taffin (An era has passed. Elmer Keith ... he fought the stroke for over two years, passing away on February 12, 1984 in a Boise nursing home. Elmer was born right at the end of the frontier period on March 8, 1899 in Hardin, Missouri ...) - http://www.sixguns.com/bunkhouse/elmer_keith.htm