Mason, Lowell, an American composer, was born at Medfield, Mass., Jan. 8, 1792. As a boy he was very fond of music; and began to teach it when quite young. In 1821 his Boston Handel and Haydn Collection of Church-Music was published, and at once made him noted, and enabled him to leave Savannah, where he had taught for 15 years, and make Boston his headquarters. Here he taught children's classes without charge, and published a number of music-books for children, as well as glee-books, and over 20 books of sacred and church music. A large part of the best American church-music is Mason's. He died at Orange, N. J., Aug. 11, 1872.