AUSTIN, Texas, Jan 15 (Reuters) - The foundation that backs the library for President Lyndon Baines Johnson is locking horns with the Air Force museum in Ohio over an Air Force One jet that Johnson admirers believe belongs in Texas.

The LBJ Foundation is seeking to have the modified Boeing 707 that came into service under President John F. Kennedy and in which Johnson took the oath of the presidency hours after Kennedy's assassination, transported to Austin and put on display near the LBJ Presidential Library.

"It would mean so much and it would become one of the most popular tourist destinations in Texas," said Tom Johnson, chairman emeritus of the LBJ Foundation.

Even though the plane served as the primary presidential jet from 1962 to 1972 - from Kennedy through Richard Nixon - the foundation believes it is inextricably linked to the Johnson presidency....