It is mentioned that E. Klem could be a pseudonym used by Eugene Klementieff. For Eugene Klementieff I could find out he was the son of artist Aleksei Klementiev (1875-1946), Eugène Klementieff spent most of his life in France. He was a student at the famous Cubist Académie André Lhote, Paris, he exhibited at the Salon d’Indepéndant and Salon d’Automne.
Known for his portraits and still lifes, Klementiev is best remembered for his murals in the Eglise Sainte Jeanne d’Arc in Nice.
Books illustrated by E. Klem:
Chairs et Dentelles, published around 1933-1938
L’Éducatrice Passionée, published in 1937
L’amoureuse Discipline, published in 1938