I seem to recall meeting Elizabeth May in the summer of 1979 at an environmental fair on Halifax's Garrison Grounds just after the 1979 federal election.
She was nonplussed by the total lack of reference to any environmental issue in the election from any party and talked about forming some sort of party that would.
A few months later she did just that : THE small PARTY ran almost a dozen candidates - all but two in the Maritimes, Elizabeth among them.