 One of his team was John McLaren, who was responsible for surveying Sections B, C and D to the south of Adelaide.This task was completed in 1839 and the first survey maps were printed in 1840.On 16 June 1837, the Colonial Commissioner Sir James Hurtle Fisher, John Morphett, Colonel William Light, and a party of marines set off from Glenelg intending to travel overland to Encounter Bay to visit whalers who were employees of the South Australian Company.