All that can presently (December 2015) be gleaned about by internet searching is that J.A. Cotter is the one-off composer of Symphony Rag (1913) published by Cotter's Theatrical & Musical, Peoria, Illinois, USA.
Surfers are welcome to contribute information about this composer.
This list is arranged in chronological order and contains 1 work by J.A. Cotter.
It does not claim to be complete and represents only the number of items located.