• Assistant keeper of the Tate Museum, London; involved in "Tate Affair." Tate director John Rothenstein (q.v.) met Leroux on an excursion to South Africa in 1949. He hired Leroux in 1950.
  • Fuseli and baroque architecture scholar; writer. Powell's parents were Owen Price Powell and Nora Webb (Powell). His father worked as a mining engineer in South Africa.