Zenon Kazimierz Keffermüller 1888–1940 Source: Wikimedia Commons About Zenon Kazimierz Keffermüller Lieutenant colonel of the Polish Army People from the Same Era James Reese Europe 1880–1919 bandleader, composer, conductor, jazz musician, mandolinist, pianist Mobile Lucy Nettlefold 1891–1966 politician London Albert de Jong 1891–1970 anarchist, anarcho-syndicalist, antimilitarism, pedagogue, social anarchism, writer Amsterdam Francesc Costa i Carrera 1891–1959 music teacher, violinist Barcelona Abbas bey Atamalibeyov 1895–1971 politician Tbilisi Joseph Zeller 1878–1929 Catholic priest, author Ellwangen