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Richard Mason (explorer)

British explorer

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 1, 2026
Entity authorityQ20055509 ↗
Source-derived summary

Richard Maurice Ledingham Mason (28 March 1935 – 3 September 1961) was a British explorer and the last British person to have been killed by an uncontacted indigenous tribe.

Biography

Early life and first expedition

Mason was born in St Leonards-on-Sea, Sussex. He was educated at Westerleigh Preparatory School St Leonard's (the school was evacuated to Black Hall in Avonwick, Devon, from 1940 to 1944) and later in 1948 Lancing College, and then read medicine at Magdalen College, Oxford. While at university, he became involved with the Royal Geographical Society and made friends that would share his love of exploration. In 1958, with fellow Oxford undergraduate Robin Hanbury-Tenison, he set out on his first expedition, which involved traveling by jeep 6,000 miles (9,700 km) across South America at its widest point, east to west from Recife, Brazil, to Lima, Peru. They were the first explorers to make this journey.

Second expedition and death

In 1961, with the aid of the Society once again and additional funding from the Daily Express newspaper, Mason organized his second, and more ambitious expedition to South America. This would involve the exploration and mapping of the 1,100-kilometre (680 mi) Iriri River, a tributary of the Xingu in central Brazil, then believed to be the longest unexplored river in the world. He took with him fellow Oxford graduates, John Hemming, who was deputy leader of the expedition, and Christopher "Kit" Lambert. The three young men would be going where no Western man had been before.

Editorial summary

Begin with the source’s own compact description: “Richard Mason (explorer)” is british explorer. The dossier treats that line as a proposition to test through Richard, Mason and explorer, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1935, 1961, 1940, 1944—that can be checked directly. The linked authority record independently contributes the date 1934-04-10. For this dossier, Richard, Mason and explorer is the immediate research focus.
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The phrase “british explorer” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 1, 2026. The linked authority identifier is Q20055509. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1935, 1961, 1940 and 1944.

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Source & attribution

This entry incorporates text from “Richard Mason (explorer)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.