CADMAN, CHARLES WAKEFIELD ), American musical composer, was born at Johnstown (Pa.), on Dec. 24, 1881. He used American-Indian material in music. His song, "From the Land of Skyblue Water," has become a classic of American song literature in many countries, including Russia. Among his operas are Shanewis (The Robin Woman), produced at the Metropolitan Opera House on March 23, 1918, and re peated in 1919, the first American opera to live beyond a season; The Garden of Mystery produced in New York, March 18, 1925; and A Witch of Salem, produced by the Chicago Opera Company, Dec. 8, 1926. Other compositions include a cantata, The Vision of Sir Laun f al; a piano sonata ; a trio and many songs