William Underwood joined the British army as an Ensign in 1855, becoming a lieutenant later that year. He served with the Scottish Highlanders, 42nd Regiment of Foot, reaching the rank of captain, before retiring from active service in 1867. He then spent the rest of his life living as a gentleman in England.
'Underwood, William (1837–1885)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/underwood-william-25205/text33756, accessed 29 March 2023.
7 November,
1837
Sydney, New South Wales, Australia
19 January,
1885
(aged 47)
Cosham, Hampshire, England