Biography
Dante's Inferno (1935) was the first major screen credit of American screenwriter Robert Yost. From here, Yost moved to Paramount, where he worked on the studio's Zane Grey Western series. Then it was off to Republic, where he penned several
Three Mesquiteers entries. Robert Yost remained active in the Western field until 1943. ~ Hal Erickson, All Movie Guide