found: The thing [MP] 1951: credits (James Arness)
found: Sierra [MP] 1950: credits (the players, Jim Arness)
found: Halliwell's filmgoer's comp., 1993 (Arness, James; b. 1923; AKA James Aurness; brother of Peter Graves)
found: IMDb, June 30, 2006 (James Arness; b. May 26, 1923, Minneapolis, Minn.; sometimes credited as Jim Arness, James Aurness, Jim Aurness; birth name: James Aurness)
found: New York times WWW site, June 6, 2011 (in obituary published June 3: James Arness; b. James King Aurness, May 26, 1923, Minneapolis; d. Friday [June 3, 2011], Los Angeles, aged 88; burnished the legend of America's epic West as Marshal Matt Dillon, the laconic peacemaker of Dodge City on Gunsmoke, one of the longest-running dramatic series in television history)