This author of "Chickamunga" published his most famous work before disappearing in Mexico.
Carter Druse shoots his father as they fight on opposite sides of the war in one of this man's works. In addition to "A Horseman in the Sky", he wrote of a child who stumbles upon badly wounded and disfigured retreating soldiers and is revealed to be deaf. He wrote a work in which friendship is described as "a boat big enough to carry two in fair weather, but only one in foul," and that work's reception earned him the nickname "Bitter." This author of "Chickamunga" published his most famous work before disappearing in Mexico. For 10 points, name this author of The Devil's Dictionary and a work centering on Peyton Farquar, "An Occurrence at Owl Creek Bridge."
Carter Druse shoots his father as they fight on opposite sides of the war in one of this man's works.
Ambrose {Bierce}