All that can presently (May 2013) be gleaned about by internet searching is that Grace Haanel Bowles is the one-off composer of The Canadian Boy Scout (1912).
Surfers are welcome to contribute information about this composer.
This list is arranged in chronological order and contains 1 work by Grace Haanel Bowles.
It does not claim to be complete and represents only the number of items located. Keys:ER