W.M. McClure 
Last updated: 22.06.17
All that can presently (May 2013) be gleaned about by internet searching is that W.M. McClure is the one-off composer of Waltz of the Brownies (1906) published by J.W. Jenkins' Sons Music Co., Kansas City, Missouri, USA.
Surfers are welcome to contribute information about this composer.

Further sheet music at DBE: ON HOLD