All that can presently (June 2019) be gleaned from sheet music covers and by internet searching is that Rudolf Aronson has 5 works published between 1880 and 1908.
Surfers are welcome to contribute information about this composer
This list is arranged in chronological order and contains 5 works by Rudolf Aronson.
It does not claim to be complete and represents only the number of items located. Keys:ER