Baltimore Ravens coach John Harbaugh, left, chats with his brother, ...

AP FILE PHOTO, NOV. 24, 2011 | published: January 19, 2012

Baltimore Ravens coach John Harbaugh, left, chats with his brother, San Francisco 49ers coach Jim Harbaugh, center, and their father, Jack, before a game in Baltimore. The Harbaughs, separated in age by all of 15 months, have taken different paths to find themselves one win from facing off in the Super Bowl.