Gustave Sandré died in 1916.
Gustave Cabaret died in 1917.
Gustave Loehr died in 1918.
Gustave Lazard died in 1949.
Gustave Fayet died in 1925.
Gustave Strauven died in 1919.
Gustave Lussi died in 1993.
Gustave Lefrançais died in 1901.
Gustave d'Eichthal died in 1886.
Gustave Beauverd died in 1942.
Gustave Michel died in 1924.
Gustave Guillaume died in 1960.
Gustave Gagnon died in 1930.