<li><span style="font-family: monospace">1976 56 hrs - John Frederik Hornsey (1974)</span>
<li><span style="font-family: monospace">1977-78 54 hrs 40 min - Peter W. Ford (1976)</span>
<li><span style="font-family: monospace">1980-83 45 hrs 34 min - Guy Hobbs (1978)</span></span>
<li><span style="font-family: monospace">1984-85 42 hrs 15 min - Charlotte Allard and Fay Gillanders (1982)</span>
<li><span style="font-family: monospace">1986-91 41 hrs 42 min - Anthony D. Sproson (1984)</span>