Alexandre Descatoire was an apprentice of André-Louis-Adolphe Laoust and Gabriel-Jules Thomas.
He was runner up for the Prix de Rome in 1902 and was elected as a member of the Académie des Beaux-Arts in 1939.
He received several medals and became Knight in the Legion of Honour in 1925.
A greater part of his works was dedicated to soldiers from the First World War.
