Sarah Myrtle Meggy was the wife of Percy Robert Meggy who wrote numerous articles on Australian politics in journals like the Review of Reviews in the 1890s; Bruce Scates mentions him in A New Australia Citizenship, Radicalism and the First Republic (1997): 227 in the context of 'the literary networks of nineteenth century radicalism...'.
During World War I, their three sons all served in the Australian army. Albert (b. 1894) and Douglas (b. 1896) were both killed, whilst Percy (b. 1888) survived. Their daughter, Margaret (b. 1890), served in the Australian Army Nursing Service. Their eldest daughter, Anna Myrtle (b. 1887), was a child prodigy who performed overseas at the age of nineteen and was later on the teaching staff of the Sydney Conservatorium of Music.