Alfred Maddock
Alfred Gavin Maddock (1917–2009) was an English inorganic chemist, radiochemist and spectroscopist who worked on the Tube Alloys Project and the Manhattan Project during World War II. Those projects resulted in the development of the atomic bomb. He may be best known for, during World War II, spilling Canada's entire supply of  plutonium which was 10 milligrams onto a wooden laboratory bench, and for recovered 9 and a half milligrams of plutonium. He recovered it by wet chemistry. He also had a distinguished, though less eventful, post-war academic career.