Tradition dictates that the captain of the Port Adelaide Football Club wear the number one guernsey – this started when Clifford Keal wore the number as club captain for the first time in 1924.
[1] The tradition was cemented, at least in the view of then-secretary Charles Hayter, when in 1929 he received a letter from a junior Kilkenny player requesting a number one Port Adelaide guernsey as he had just become captain of his underage team.
[2] Hayter granted the wish of the junior and provided him with a number one Port Adelaide guernsey.
[1] When Motley handed the captaincy to John Cahill in 1967, at the insistence of coach Fos Williams, the tradition of Port Adelaide captains wearing the number one guernsey resumed.
1 guernsey was temporarily retired, but it was re-instated the following season when the club returned to appointing a single captain.