 The fifth original associate justice seat, and the simultaneously created seventh and eighth seats, are numbered according to the order in which each seat's first occupant received their commission from the president following Senate confirmation.Seats six, nine, and 10 are numbered according to the order in which each was created by statute.The "start date" listed for each justice is the day he or she took the judicial oath of office, and the "end date" is the date of the justice's death, resignation, or retirement.