Arthur Maquarie was born in Dubbo, NSW, as Arthur Frank Macquarie Mullens, later changed his name by deed poll. After graduating from the University of Sydney in 1895 he worked in England as a freelance writer, in Italy as a teacher of English, and also lived in France and Spain; he was active in the Royal Society of Literature and organised the British committee which promoted intellectual harmony among the Allies in the First World War. He wrote several plays on medieval subjects and several volumes of lyrical verse, but is most significant for the assistance he provided to Henry Lawson in London in 1900-1; as well as writing articles about Lawson which helped introduce him to literary London, Maquarie arranged meetings with editors, publishers and literary agents, and lived with Lawson while part of the Joe Wilson sequence was being written. Lawson's poignant portrait of Maquarie's struggle as a hack writer in London forms part of recently discovered material and is included in Brian Kiernan's The Essential Henry Lawson (1982).