HENDERSON, WILLIAM JAMES Ameri can music critic and author, was born at Newark (N.J.), on Dec. 4, 1855. Graduating at Princeton (1876), he was on the New York Times (1883-1902) and the New York Sun (from 1902 onward) as music critic, and was associate editor of the Standard Dic tionary, 1892-93. With Richard Aldrich, James Huneker and Henry E. Krehbiel, he established himself as one of the foremost American critics of his day and on his loth birthday he was hailed as the doyen of New York music writers. He adapted a number of operetta librettos, including Le Petit Duc, produced at the Casino theatre, and the libretto for Walter Damrosch's Cyrano de Ber gerac; he wrote The Little Duke in collaboration with H. C. Bunner; also a number of books on music and the sea.