At the start of the First World War he saw service as a staff attaché to General Leman, but was captured by the Germans.
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A metro station (Thieffry metro station) and a street (Rue Aviateur Thieffry / Vlieger Thieffry Straat) have also been named after him in Etterbeek.
Edmond Thieffry (1892–1929), Belgian First World War air ace and aviation pioneer
Edmond Halley | Edmond Rostand | Edmond James de Rothschild | Edmond Adolphe de Rothschild | Edmond S. Meany | Edmond Malone | William Edmond Logan | Edmond Warre | Edmond T. Gréville | Edmond, Oklahoma | Edmond Jabès | Edmond Fortier | Edmond Couchot | Robert Edmond Grant | Pierre Edmond Teisserenc de Bort | Neil Edmond | Henri-Edmond Cross | Edmond Stanley | Edmond Safra | Edmond Picard | Edmond Gustave Camus | Edmond | Thieffry metro station | Pierre Edmond Boissier | Matthew Edmond McCoy | Martin Edmond | Lauris Edmond | François-Edmond Fortier | François Christophe Edmond de Kellermann | Edmond Townsend |