All that can presently (July 2019) be gleaned about Warren N. Dean from sheet music covers and by internet searching is that he has 2 works published between 1924 and 1940.
Surfers are welcome to contribute information about this composer.
All the Rage: Mandolin Ensemble Music From 1897-1924
This list is arranged in chronological order and contains 2 works by Warren N. Dean.
It does not claim to be complete and represents only the number of items located.