Note: Australia is generally considered to be a continental landmass, rather than an island. If however one does count Australia among the islands it, not Greenland, would be the largest in the world (unless one also considered Antarctica an island).
... 1958 he ran as a write-in SPA candidate and than in 1968 as a Peace And Freedom Party candidate for Congress. In 1980 he would run for President as the SPUSA candidat ...