The Rainbow Trail (1918 film)
The Rainbow Trail is a lost 1918 American silent western film directed by Frank Lloyd.
The picture was an adaptation of Zane Grey's novel of the same name.
It was a sequel to the 1918 film" Riders of the Purple Sage", which also starred William Farnum as Lassiter.
" The Rainbow Trail" was remade, with sound, in 1931.
Riders of the Whistling Skull
Riders of the Whistling Skull is a 1937 "Three Mesquiteers" Western B-movie of the weird western genre starring Bob Livingston, Ray "Crash" Corrigan, and ventriloquist Max Terhune with his dummy Elmer.
It was directed by Mack V. Wright, produced by Nat Levine and released by Republic Pictures.
The film is based on the 1934 novel by William Colt MacDonald.
Mack V. Wright
Mack V. Wright (March 9, 1894 – August 14, 1965) was an American actor and film director.
Active as a director from 1920 to the late 1940s, he also had an extensive career as an assistant director, second-unit director and production manager.
His heyday was in the 1930s, when he directed or co-directed serials for Republic Pictures and made westerns for Monogram Pictures, often with John Wayne.
He was also an actor, appearing in his first film in 1914 and his last in 1934, almost all of them westerns.
Dana Blankstein
Dana Blankstein- Cohen( born March 3, 1981) is the director of the Israeli Academy of Film and Television.
She is a film director, and an Israeli culture entrepreneur.
Riders of the Range (1949 film)
Riders of the Range is a 1949 Western film directed by Lesley Selander.
The Rainbow Trail (1932 film)
The Rainbow Trail is a 1932 Western film directed by David Howard and starring George O'Brien.
The picture is an adaptation of Zane Grey's novel of the same name and a sequel to the 1931 film" Riders of the Purple Sage", which also stars O'Brien.
Peter Levin
Peter Levin is an American director of film, television and theatre.
Ian Barry (director)
Ian Barry is an Australian director of film and TV.
Riders of the Sage
Riders of the Sage is a 1939 American film directed by Harry S. Webb.
Earle Ross
Earle Ross (March 29, 1888 – May 21, 1961) was an American radio and film actor.
While in school he became interested in dramatics and was usually cast as a villain or an old man because of his unusual voice characteristics.
In 1908 he worked with Colonel Bill Selig in his first 5-reel movie film "The Holy Cross".
In 1912, he ventured to the East Coast and worked on Broadway in such shows as "Where the Trail Divides" and "Cost of Living".
From there, he started his own chain of theaters but went broke in the Wall Street Crash of 1929.
Ross became a radio broadcast pioneer and had his own show, "The Earle Ross Theater of the Air" and also starred in "Inspector Post", a continuing radio drama.
In 1936 he appeared in various films such as "CavalryStormy Trails", and "Riders of the Whistling Skull".
Ross's most memorable roles were on radio: that of Judge Horace Hooker on "The Great Gildersleeve" and Howie MacBrayer on Point Sublime.
Earle Ross died of cancer, aged 73, on May 21, 1961.

Question: Which country the director of film Riders Of The Whistling Skull is from?
Answer: American