2017 to 2019      Iain Miller

2015 to 2016      Neil Morrison

2012 to 2014      Jill Jardine

2010 to 2012     Alison Findlay

2008 to 2010     Roger Watts

2006 to 2008     Colin Sutherland

2004 to 2006     Nicol Maclean

2002 to 2004     John Lamb

2000 to 2002     John Lamb

(under development)