All that can presently (September 2019) be gleaned about Howard M. Githens from sheet music covers and by internet searching is that he has 7 works published between 1900 and 1918.
Of ragtime interest is That Gigglin' Rag (1912) published by Clarice Manning & Co., New York, USA.
Surfers are welcome to contribute information about this composer.
This list is arranged in chronological order and contains 7 works by Howard M. Githens.
It does not claim to be complete and represents only the number of items located. Keys:ER(w&m)