Born: December 16, 1889, Hillsboro, Kansas.
Died: September 8, 1979, Los Angeles, California.
Buried: Bellevue Memorial Park, Ontario, California.
Otto was the son of John S. Hirschler and Christine Schmidt.
He attended Pomona College, Claremont, California; the Los Angeles Conservatory of Music and Arts; and the American Conservatory of Music, Chicago, Illinois.
He headed the organ and theory departments at Albion College, Michigan (1916–17); the organ department at Coe College, Cedar Rapids, Iowa (1917–19); and was head of piano, organ and theory instruction at the California Christian College, Los Angeles.
He played the organ at:
If you know where to get a good photo of Hirschler (head & shoulders, at least 200×300 pixels),