According to a page at http://www.flickr.com/photos/geoff-inoz/4397580346/, St Paul's Church (Anglican), 28 Symonds Street, Auckland features the "fine carving of the capitals and label stops completed by William Feldon in 1910-11". W.H. Feldon is also mentioned in a couple of historic newspaper articles online at http://paperspast.natlib.govt.nz/cgi-bin/paperspast. If you do a search using 'Feldon', two relevant articles include one from the Poverty Bay Herald, 27 July 1920 and the Evening Post, 6 May 1914 appear in the listing. The Ministry for Culture and Heritage was recently supplied information by John Feldon about W. H. Feldon.