[1][2][3][4] Born in Tourcoing in October 1892,[2][a] Lesur played his entire career at his hometown club US Tourquennoise between 1912 and 1914.

[2][4] On 16 February 1913, the 20-year-old Lesur earned his first international cap for France in a friendly match against Belgium at Uccle, which ended in a 0–3 loss.

[6] During the First World War, he was wounded and taken prisoner on 23 August 1914 in the battle of Saint-Gérard, and was then interned in the Altengrabow [fr] camp, alongside Gabriel Hanot.

[7] In the summer of 1919, the 27-year-old Lesur was a member of the French committee that went to the Inter-Allied Games in Paris, a large sports competition organized in celebration of the Allied victory in the War, being listed as a member of the football team, whose squad was formed by soldiers who had participated in the War.

[9] After the War, Lesur became a wool merchant in Tourcoing,[10] where he died on 1 March 1971, at the age of 78.