Irish-born surgeon in the British Navy who participated in several Arctic voyages. The papers of John Simpson date from 1825 to 1875 and span his entire career as a naval surgeon aboard the English vessels Blonde, Plover and Superior. The collection is arranged into the following series: , and . Simpson's journals from the Arctic voyages on the HMS Plover and Superior on which he served as surgeon or assistant surgeon provide detailed accounts of the voyages, including life on board and the medical problems afflicting the crew and passengers. The collection includes detailed meteorological observations aboard the Plover. There are also unique and valuable materials on native cultures in present-day Alaska, Canada, and the Arctic which include extensive Simpson's notes on the local languages, a number of sketches of Inuit people and culture, hand-drawn maps, and drawings of geographical features. Also included in the collection are a variety of legal papers; correspondence; papers and items related to poetry, plays, and amusements aboard the Plover; and miscellaneous other papers and printed materials. A number of the volumes, flyers, and broadsides were printed on board ship. There are additional materials that briefly describe voyages to Guyana, and documents relating to Simpson's service aboard other ships. Accounts of Voyages, Correspondence, Legal Papers, Medical Files, Native Cultures, Meterology Files, Additional Papers, Other Printed Material Poetry, Plays, and Amusements