 After divorcing his first wife, Boyle married one of his students at Zion Lutheran Church in Baltimore; less than a decade later, the couple took part in a Nevada divorce case, according to a 1922 "Baltimore Sun" article.Boyle died in Philadelphia on June 20, 1948, at the age of 61.Boyle wrote an opera titled "The Black Rose"; nine orchestral works, including a "symphonic fantasia" and a piano concerto in D minor (premiered by Ernest Hutcheson), a violin concerto and a cello concerto; two cantatas; more than 30 songs; eight pieces of chamber music; and more than 70 piano pieces.