Born at Nyngan, NSW, 8 December 1929.
Mr Ovenden commenced duties at Tenterfield with the Forestry Commission of NSW on 1 October 1973 and retired because of ill health on 17 March 1986.
In his early years with the Forestry Commission as a Marketing Foreman he was also engaged in gathering botanical information for Tenterfield Forest management and it was in 1979 he collected the type of Eucalyptus caleyi Maiden subsp. ovendenii L. Johnson & K. Hill (1991).
Special projects on which he was engaged included the Glen Innes Injection/Trap Tree work connected with dieback on the New England Tableland and, in 1984 field trappings to locate the presence of the Hastings River mouse.Source: Extracted from: Hall, N. (1992) Suppliment No. 3 to 'Botanists of the eucalypts - 1978'. Commonwealth Scientific and Industrial Research Organisation, Melbourne