KnowraJack SwigertLinked fromLinked fromThe 4 pages that link to Jack Swigert, each with the reason it gives.All 4Related 3Compared with 1Apollo 13Related: His report of the explosion began the mission’s emergency response.Fred HaiseRelated: Swigert joined Haise and Lovell on the mission after Ken Mattingly was grounded.Jim LovellRelated: Swigert served alongside Lovell during the mission’s emergency and return.Ken MattinglyCompared with: Swigert took the seat that Mattingly had trained for after the crew change.