Leonardo De Lorenzo (1875-1962), was an Italian born flutist, and the first flute instructor at the Eastman School of Music. De Lorenzo began playing the flute at a young age, but spent several years in the Italian military before completing his formal education at the conservatory in Naples. In 1910, he came to America as the principal flutist for the New York Philharmonic. He subsequently played with the Minneapolis Symphony and Los Angeles Symphony before landing in Rochester as a member of the Eastman Theatre Orchestra. In 1924, the Eastman School of Music added orchestral instrument programs, and took in De Lorenzo and other ETO members as the first instructors.
After his retirement in 1935, De Lorenzo focused on his own writings and compositions, publishing his book, My Complete Story of the Flute, in 1951.