R. A. Lafferty (1914-2002) lived almost his entire life in Tulsa, Oklahoma. After service in the South Pacific during World War II, he worked as an electrical engineer. He began selling fiction regularly in the early 1960s, and went full-time as a writer in 1971. His work draws on many influences, ranging from Irish and Native American tales to the writings of St. Teresa of Avila. His novels include Past Master (1968), Fourth Mansions (1969), and the Native American historical Okla Hannali (1972).