He is known for his dramatic bronze military statues, but perhaps best known for his marble Le Nid (The Nest), showing two children asleep in an armchair.

His father was Adolphe Croisy, a master mason who was later responsible for building the fortifications at Mézières, Ardennes.

He also sculpted General Boulanger and the statue of Étienne Méhul, author of the Chant du départ..., for his home town of Givet.

[5] He made the groups surrounding the pedestal of the monument of General Chanzy erected at Le Mans in 1885, representing four episodes of national defense.

[3] In 1875 Croisy made a plaster statue of Paolo and Francesca showing two innocent young lovers in Florentine dress reading a book together.

Made of polished white marble it represents two children, a brother and sister, asleep in a comfortable armchair.