Lawrence Dubuclet 
Last updated: 22.06.17
All that can presently (May 2013) be gleaned about by internet searching is that Lawrence Dubuclet is the one-off composer of Southern Melodies (1905) published by Arnett-Delonais Co., Chicago, Illinois, USA.
Surfers are welcome to contribute information about this composer.

Further sheet music at DBE: ON HOLD