South Georgia and granted in 1910, Captain Larsen wrote: "I have given up my Norwegian citizens rights and have resided here since I started whaling in this colony on 16 November 1904 and have no reason to be of any other citizenship than British, as I have had and intend to have my residence here still for a long time." His family in Grytviken included his wife, three daughters and two sons. As the manager of Compañía Argentina de Pesca, Larsen organised the construction of Grytviken ― a remarkable undertaking accomplished by a team of 60 Norwegians since their arrival on 16 November until the newly built whale oil factory commenced production on 24 December 1904. Larsen also established a meteorological observatory at Grytviken, which from 1905 was maintained in cooperation with the Argentine Meteorological Office under the British lease requirements of the whaling station until these changed in 1949. Larsen chose the whaling station's site during his 1902 visit while in command of the ship Antarctic of the Swedish Antarctic Expedition (1901–03) led by Otto Nordenskjöld. On that occasion, the name Grytviken ('Pot Cove') was given by the Swedish archaeologist and geologist Johan Gunnar Andersson who surveyed part of Thatcher Peninsula and found numerous artefacts and features from sealers' habitation and industry, including a shallop and several try-pots used to boil seal oil. One of those try-pots, having the inscription 'Johnson and Sons, Wapping Dock London' is preserved at the South Georgia Museum in Grytviken. Larsen was also instrumental, with his brother, in introducing Reindeer to South Georgia in 1911 as a resource for hunting for the people employed in the whaling industry. Most of the whalers were Norwegian, with an increasing proportion of Britons. During the whaling era, the population usually varied from over 1000 in the summer (over 2000 in some years) to some 200 in the winter. At the height of the whaling industry about 6000 men, mostly Norwegians and Swedes, worked at the stations and, with the men working on the whale-catchers, factory ships and supply vessels, there could be three times the population when the whaling fleets were at anchor in the harbours. The first census conducted by the British Stipendiary Magistrate James Wilson on 31 December 1909 recorded a total population of 720, including 3 females and 1 child. Of them, 579 were Norwegian, 58 Swedes, 32 Britons, 16 Danes, 15 Finns, 9