O. Henry was the pen name of William Sydney Porter, an American writer born in 1862 in North Carolina. He worked as a pharmacist in his youth but later moved to Texas due to fears of tuberculosis. In the 1880s, he became a bank teller but was later arrested for embezzlement and served three years in prison. After his release in 1901, he changed his name to O. Henry and moved to New York City, where he wrote over 300 short stories and became famous for his collections Cabbages and Kings and The Four Million. Despite his success as a writer, O. Henry died in poverty in 1910 from cirrhosis of the liver at the age of 47.