A. Morrison, "Wickham, John Clements (1798–1864)", "Australian Dictionary of Biography", National Centre of Biography, Australian National University (also available in hard copy in "Australian Dictionary of Biography", Vol.
A. Morrison, «Wickham, John Clements (1798—1864)», "Australian Dictionary of Biography", National Centre of Biography, Australian National University (also available in hard copy in "Australian Dictionary of Biography", Vol.