I don't want to monopolize your time on the Web, but if you are
a Frank Milne fan as I am, you might want to look at another posting
I just made.

Several of us in the pipe organ crowd think that the Aeolian pipe
organ artist "Marvin Abbott" is probably [Duo-Art piano roll artist]
Frank Milne.  Marvin Abbott's rolls appear in the late 1920's and
thus he should be traceable, but no one has found anything.  He is
a mystery.

Let your ears be the detective.  Post your thoughts to MMD if you like.
Give a listen here:

  http://aeolianorgan.com/aeolian/Special_Selections_2.html 

Bob Taylor
Missouri