During the First Wizarding War, Dorcas became a member of the Order of the Phoenix, an organisation led and founded by Albus Dumbledore, in order to oppose Lord Voldemort and his Death Eaters. Dorcas was murdered by Lord Voldemort sometime in the second half of 1981, along with many members of the Order. In 1995, Mad-Eye Moody showed Harry Potter a group photo of the first Order of the Phoenix that included Dorcas.