Feb 21‒Mar 23, 1905 La Libre Esthétique. La douzième Exposition

Brussels: Brussels (exact location unknown)

Mar 1‒Apr 5, 1908 La Libre Esthétique, Salon Jubilaire

Brussels: Brussels (exact location unknown)

Apr 27‒Jun 30, 1911 Fifteenth Annual Exhibition

Pittsburgh: Carnegie Institute