<Li> Kyle Daniel Ryan </Li> <Tr> <Th> Religion </Th> <Td> Roman Catholic </Td> </Tr> <P> Dr. John Patrick "Jack" Ryan Sr., KCVO (Hon .), Ph. D. is a fictional character created by author Tom Clancy who appears in many of his novels and their respective film adaptations . </P> <P> Jack Ryan was born in Baltimore in 1950 and grew up there, son of a city police detective and a nurse, and attended at Loyola . He earned an NROTC commission in the U.S. Marines at Boston College . Medically discharged at the rank of 2nd Lieutenant following a helicopter crash in Greece, he worked as an investment broker briefly and made a fortune . He met and married Caroline "Cathy" Mueller, a medical student and later an ophthalmic / eye surgeon at Johns Hopkins Hospital, with whom he had four children . He returned to academia, eventually accepting a position as a history professor at the U.S. Naval Academy at Annapolis . </P>

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