Harold Strachan

Robert Harold Lundie "Jock" Strachan (1 December 1925 – 7 February 2020) was a South African writer and anti-apartheid activist. He flew for the South African Air Force during World War II. He became Umkhonto we Sizwe's first explosives expert. He put in jail for sabotage, and after his release he served another sentence for telling a journalist about poor prison conditions. 
He wrote two semi-autobiographical books, and completed the Comrades Marathon twice, winning a medal once. 
Strachan died from liver disease-related problems on 7 February 2020 at the age of 94.