Thomas Harold Flowers MBE was an English engineer with the British General Post Office. During World War II, Flowers designed and built Colossus, the world’s first programmable electronic computer, to help decipher encrypted German messages.
As part of our first National Lottery Heritage Fund project, we commissioned noted historian and author Giles MacDonogh to research and write a longform piece on Tommy, with support from the Fensom and Flowers families, and The National Museum of Computing at Bletchley Park and GCHQ, who granted rare access to many Lorenz transcripts that Giles translated from German.