Isidore Springer

Isidore Springer (23 July 1912 in Antwerp, 27 December 1942 in Lyon, France) was a Belgian diamond dealer and communist[1] who became an important member of the Red Orchestra organisation in Belgium and later France during World War II.

[6] Valaerts was active in the World Committee Against War and Fascism and was a member of the Communist Party of Belgium.

[6] She collaborated with her husband as a member of the Ger codename was Flora Van Fliet and she provided a range of services to the GRU including using her dance class a mail drop location for the network.

[2] In 1938, Springer moved to Belgium and became an active member of the espionage network run by Anatoly Gurevich.

[6] She had received the death sentence as she has used her dance class in Rue Royale in Brussels as a mail drop for the espionage network.