Following
World War I, the First
International Hydrographic Conference was held in London. It led to the establishment in 1921 of the
International Hydrographic Organization, with most counties founding or formalizing their own
Hydrographic Office. In the 1930s, the systematic and regular collection of
oceanographic and naval
meteorological data had begun. Atherton entered service in 1924, the same year Sir
Percy Douglas was appointed
Hydrographer of the Navy. Among his many cartographic roles would be to a participant in a number of
Hydrographic Surveys, which culminated in data changes being recorded and lead to revisions to
Nautical charts and monitoring the
Antarctic Convergence. Under the auspices of the
Discovery Committee he took the lead cartographer role in the
British Discovery Expeditions on board
Discovery II, spending many years in the
Southern Ocean and
South Georgia and the South Sandwich Islands. Part of the investigation involved the last privately sponsored Antarctic missions, known as the
British Graham Land expedition of 1934–1937. Under
Vice-Admiral John Augustine Edgell, Atherton was appointed as the Assistant Superintendent, Chart Production and Supplies Branch from 1937 and quickly went through the ranks. He prepared charts and maps for
Arthur Marder as part of the UK contribution towards the quintuple. During
World War II he worked closely with Sir
Eric Seal, who had been Principal Private Secretary to
Winston Churchill until he was released for special duties with the
Admiralty. Seal was his brother in law and had married to his wife’s elder sister Gladys Leadbetter in 1926. Atherton later served as the Chief Civil Hydrographic Officer and Assistant Superintendent of Charts, for the Admiralty from 1951 to 1962. He attended the 7th International Hydrographic Conference alongside Rear-Admiral Sir
Edmund George Irving, who had recently been appointed as the
Hydrographer of the Navy. During his final years he formed part of a committee that convinced the Admiralty that purpose-built survey vessels would be cheaper than converted naval vessels, the first being launched as in 1964. He was praised by Arthur Marder, an American historian specialising in the
Maritime history of the United Kingdom from 1880 to 1945 for his cartographic expertise. ==Personal life==