Two bodies have been found in burnt-out houses in the bushfire-ravaged town of Yarloop, as the desperate family of a missing man Malcolm Taylor appealed for help while fearing the worst.

WA Police said the suspected human remains could belong to two men, aged 73 and 77, who have been missing since the blaze swept across the town on Thursday night.

Earlier, the family of 73-year-old cancer survivor Mr Taylor had appealed for help to locate him after he had been missing since the fire hit.