Works
Cabbages and Kings, Four Million, The, Gentle Grafter, The, Gift of the Magi, The, Heart of the West, Options, Page by Page Books: O. Henry, Roads of Destiny, Rolling Stones, Sixes and Sevens
Biography and Works
Includes a biography and a searchable collection of short stories.
Free Online Library: O. Henry
Biographical sketch, and online text of story collection "The Four Million".