Geologist and army officer. Entered the India Mercantile Marine circa 1850–1. Studied at King's College London, 1854–5. Joined the Royal Welsh Fusiliers, serving in the Crimea and India, 1855–8. Completed his education at Sandhurst and Woolwich academies. Captain, 1862. Left the army in 1865, and emigrated to New Zealand in 1866. Employed by Auckland provincial government to survey coal deposits. Assistant geologist to the Geological Survey of New Zealand, 1871–3. Provincial geologist of Otago, 1873–6. Professor of natural science, University of Otago, 1877–80. Professor of biology, Canterbury College, 1880–93. Curator of Canterbury Museum from 1893. FRS 1892.
Sources: DNZB Stenhouse, John 1990 Thomson, G. M. 1884–5
(See the bibliography for full references to sources)