I don't know all those guys but thet were part of an outstanding crew of runners who attended Otago University in the late 60's early 70's (No such thing as Athletic Schols here guys.) Real characters, tough as hell in a race and enjoyed a Beer or 6 afterwards.
Some other Characters appear in Taylers Book who are still around. Do you want cooment !!
Not 100% sure that was Dave Sirl who who died HRE. But it would be 9 years since I spoke to him as he passed me in a 5k Fun Run !
I know that LLoyd walker died of a Heat attack. He was part of that 1975 Cross Country Team.