Wm. Murray Simpson 
Last updated: 22.06.17
All that can presently (February 2016) be gleaned about by internet searching is that Wm. Murray Simpson is the one-off composer of The King of Them All (1909) published by Frank K. Root and Co., Chicago, Illinois, USA.
Surfers are welcome to contribute information about this composer.
CDs :
Ragtime Music CDs:
cd15.gif "Perfessor" Bill Edwards on "Syncopated Safari"

Further sheet music at DBE: ON HOLD