In 1921, Kerley was cleared from Collingwood to play with St Kilda.Football: Permits Granted, The Argus, (Saturday, 7 May 1921), p.20. He played his first match for St Kilda, against South Melbourne, on 7 May 1921 (round one). He played his last match for St Kilda, again against South Melbourne, on 5 August 1922 (round thirteen). In all he played 20 senior games for St Kilda (15 games in 1921, and 5 games in 1922).
