What is Sam's full name in the O. Henry short story, "The Ransom of Red Chief"?

Sam is one of the two kidnappers in the O. Henry short story, "The Ransom of Red Chief." Sam and his partner, Bill, decide to abduct the son of a wealthy Summit, Alabama man, Ebenezer Dorset. But little Johnny Dorset makes life miserable for the two men. To entertain him, they play a running game of cowboys and Indians, of which Johnny goes by the name of "Red Chief." Bill Driscoll, one of the kidnappers, allows himself to be called "Old Hank, the trapper, Red Chief's captive," who is supposed to be scalped at daybreak. Sam, the narrator of the story, whose last name is never revealed, is called "Snake-eye, the Spy" by the young terror, Red Chief.