and died at home in Sydney on 2 January 1903, aged 56. In January 1878 Connor traveled from Brisbane to Cairns on SS Victoria, arriving the evening of 31 January. He commenced work the next day (what vessel he used is not detailed), completing the survey of Cairns Harbour in fine weather by 9 February. He then traveled to survey Port Douglas on , and returned to Brisbane on on 22 February. He reported to the Colonial Treasurer, in a letter dated 24 March 1878, that Cairns Harbour, at the extreme south end of Trinity Bay, had an anchorage sheltered from "east by south to west". Three channels existed from the anchorage into the port, the east channel being the most direct, and at least deeper than the other two. He noted that the "shoalest" water of at low water springs was found from one to two miles inside the Fairway buoy. The water then deepened gradually until there was over just off the wharves (on the west side of the mouth of Trinity Inlet). He added that he had left well defined datum marks at both Cairns and Port Douglas. His report included a map of Cairns Harbour, scaled at to the nautical mile, which indicated soundings in feet, reduced to low water ordinary spring tides. The datum mark at Bessie Point was indicated on the map as being "12 feet above low water ordinary Sp[ring tides]", and near the map's title it was stated that the datum mark was "on top of the largest boulder on Bessie Point". Although Trinity Inlet provided a safe harbour, continuous dredging of a channel through the bar was required for larger vessels to reach the inlet, and the depths required were calculated from the datum indicated by the bench mark at Bessie Point. For example, in 1890 the bar was dredged to provide depth of water in a channel at low water ordinary spring tides, but by 1894 part of the channel had re-silted to a depth of . Later the bar cutting was dredged to in 1902, only to re-silt to by 1905. The Cairns Harbour Board took over the port in 1906, and concrete wharves were commenced in 1910. By 1915 a deep entrance channel had been dredged, and the bar cutting was long. The spoil from dredging was used for land reclamation on shore. As well as surveying Cairns