Complex sentence: Julia Crane (1855-1923) (1855--1923) was an American music educator who set up a school, the Crane School of Music in Potsdam, New York, which was the first school specifically for the training of public school music teachers.
Split into simpler sentences: Julia Crane (1855-1923) (1855--1923) was an American music educator. She set up a school, the Crane School of Music in Potsdam, New York, which was the first school specifically for the training of public school music teachers.