William Sanderson La Trobe founded and directed the Wellington Technical College from 1904 to 1919. At the time this photograph was taken, he was superintendent of technical education, a post he held from 1919 to 1938.
Rollo Arnold. 'La Trobe, William Sanderson', Dictionary of New Zealand Biography, first published in 1996, updated June, 2017. Te Ara - the Encyclopedia of New Zealand, https://teara.govt.nz/en/biographies/3l1/la-trobe-william-sanderson (accessed 6 December 2021)