June 3, 1851, New York City.
October 13, 1934, Dresden, Germany.
Around 1865, Baker was an organist in Concord, Maine. He lived in Germany 1874–90, where he studied music, receiving his PhD degree at the University of Leipzig; his doctoral dissertation was on the music of the Seneca Indians. Later he worked as literary editor for the G. Schirmer Music Company (1892–1926) and wrote the Biographical Dictionary of Musicians (1900).