According to Mike Hill in Cold War Cornhuskers:
Research indicates this was the first B-47 to be assigned to the 98th BW at Lincoln AFB, arriving December 1955. Transferred to the 307th BW. It was demilitarized and placed on display near the BX Annex. After the base closed, it was towed across the runway and used as a fire practice aircraft.
See my Gate Guardian webpage.