John Harbaugh (born September 23, 1962) is currently the defensive backs coach for the Philadelphia Eagles. Prior to his assignment to defensive backs coach he served as the Eagles special teams coach for 7 years, transforming one of the Eagles' weaknesses into a strength. His brother, former quarterback in the NFL and current Stanford University football coach, is Jim Harbaugh. His brother-in-law is Tom Crean, the current basketball coach Marquette. Wikipedia
The definitive Wikipedia entry for John Harbaugh. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/John_Harbaugh_%28football_coach%29