All that can presently (July 2019) be gleaned about John W. Cavanaugh from sheet music covers and by internet searching is that he has 3 works published between 1894 and 1896.
Of ragtime interest is De Bully's Wedding Night (1896) published by Unknown, The Lost City, Lost City, Nowhere Land.
Surfers are welcome to contribute information about this composer.
This list is arranged in chronological order and contains 4 works by John W. Cavanaugh.
It does not claim to be complete and represents only the number of items located.