H.S. Brennan 
Last updated: 22.06.17
All that can presently (March 2016) be gleaned about by internet searching is that H.S. Brennan is the one-off composer of Huckleberry Finn (1900) published by Joe Morris Music Company, New York, USA.
Surfers are welcome to contribute information about this composer.

Further sheet music at DBE: ON HOLD