Karl R. CoolidgeKarl R. Coolidge was an American screenwriter. He wrote for 73 films between 1913 and 1935. He was born in Scranton, Pennsylvania and died in Los Angeles, California.Selected filmographyThe Flame of Youth Like Wildfire The Mysterious Outlaw The Spindle of Life Play Straight or Fight Ace High The Crow The Fighting Line The Gun Packer Kingdom Come The Lion Man The Moon Riders Nan of the North The Steel Trail The Fast Express ''Riders of the Plains''