All that can presently (May 2013) be gleaned about by internet searching is that Harry Mertha is the one-off composer of Snoring Sampson (1907).
Surfers are welcome to contribute information about this composer.
Snoring Sampson (1907)
Colin D. McDonald
This list is arranged in chronological order and contains 1 work by Harry Mertha.
It does not claim to be complete and represents only the number of items located. Keys:ER