Margery Dennis 
Last updated: 22.06.17
All that can presently (July 2015) be gleaned about by internet searching is that Margery Dennis is the one-off composer of The Hurdler (1904) published by The Tolbert R. Ingram Music Co., Denver, Colorado, USA.
Surfers are welcome to contribute information about this composer.

Further sheet music at DBE: ON HOLD