All that can presently (October 2015) be gleaned about by internet searching is that Gary Morgan is the one-off composer of Trilby Rag (1915) published by Jos. W. Stern & Co., New York, USA.
Surfers are welcome to contribute information about this composer.
This list is arranged in chronological order and contains 1 work by Gary Morgan. It does not claim to be complete and represents only the number of items located. Key: Electronic Resource Items