William March (September 18, 1893 – May 15, 1954) was an American writer of psychological fiction and a highly decorated U.S. Marine. The author of six novels and four short-story collections, March was praised by critics but never attained great popularity. March grew up in rural Alabama in a family so poor that he could not finish high school, and he did not earn a high school equivalency until he was 20. He later studied law but was again unable to afford to finish his studies. In 1917, while working in a Manhattan law office, he volunteered for the U.S. Marine Corps and saw action in World War I, for which he was decorated with some of the highest honors—the French Croix de Guerre, the American Distinguished Service Cross, and the U.S. Navy Cross.