In 1912 in New York City organized and conducted the Kriens Symphony Club (now the American Symphony) (leader: conductor Julian Carrillo, whose D major symphony of ca.?1875, apparently, was in the inaugural concert.) (A performance of that same symphony was recently conducted by the same orchestra under Botstein, tangentially...) His brother Martinus (1880-1915) also a composer, was killed in the First World War. Both brothers knew early success in the 1890s. Note that works by Christiaan Pieter Willem Kriens (sr.) (1853-1925) should not be confused with those of this composer.