(1811–85), born Aberdeenshire, Scotland, was a bookseller and publisher in Aberdeen before emigrating to NSW in 1837. In 1839 he founded the Catholic newspaper the Australasian (later Sydney) Chronicle, and after losing control of it established Duncan's Weekly Register (1843–45); Charles Harpur and Henry Parkes contributed to both journals and Duncan published Harpur's first major collection, Thoughts, A Series of Sonnets (1845). In 1846 Duncan became a public servant, working in the customs service in Moreton Bay, 1846–59 and Sydney, 1859–81. He wrote a number of pamphlets and other works on religion, education, politics and history.
From The Oxford Companion to Australian Literature in Oxford Reference.