Biographical entry O'Callaghan, Michael Angelo
- Dairy expert
Michael Angelo O'Callaghan was a dairy expert appointed by the New South Wales government in 1896. He later became the first Commonwealth Dairy Expert.
- 'O'Callaghan, M A (1868-)', Trove, National Library of Australia, 2009, http://nla.gov.au/nla.party-1135875. Details
- Academy of Technological Sciences and Engineering, Technology in Australia 1788-1988, Online edn, Australian Science and Technology Heritage Centre, Melbourne, 3 May 2000, http://www.austehc.unimelb.edu.au/tia/index_o.html. Details
Created: 25 May 2001, Last modified: 25 May 2006
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