Michael Willmer Forbes Tweedie (2 September 1907 – 25 March 1993) was a naturalist and archaeologist working in South East Asia, who was Director of the Raffles Museum in Singapore.
He read Natural Science at Cambridge University, specializing in zoology and geology, followed by a short spell working as an oil geologist in Venezuela.
While being held at Boi Glodok he developed a yeast mixture, grown on potatoes, whose high vitamin B content helped cure his fellow prisoners of pellagra.
He was subsequently moved to Nagasaki in Japan and then Mukden (Shenyang) in Manchuria before liberation by Soviet troops in 1945.
[3] Tweedie was involved in many biological and archaeological expeditions in South East Asia and collected many specimens himself.