All that can presently (May 2013) be gleaned about by internet searching is that Andrew J. Boex is the one-off composer of Le Chevalier (1914).
Surfers are welcome to contribute information about this composer.
This list is arranged in chronological order and contains 1 work by Andrew J. Boex. It does not claim to be complete and represents only the number of items located. Key: Electronic Resource Items