Complex sentence: Eugene Cernan, Ronald Evans and Jack Schmitt--all of whom took photographs during the mission with the on-board Hasselblad, although evidence examined after the mission suggests that Jack Schmitt was the photographer.
Split into simpler sentences: Eugene Cernan, Ronald Evans and Jack Schmitt--all of whom took photographs during the mission with the on-board Hasselblad. Although evidence examined after the mission suggests that Jack Schmitt was the photographer.