I was idly browsing about (as you do!) and came up with
a few interesting web sites you might like to take a look at;-

Leopold Godowsky Web Site
  http://www.godowsky.com/

Tim Gracyks Site
  http://www.garlic.com/~tgracyk/makers.htm
On this particular page are details of early phonograph manufacturers.
The interesting entry is the one detailing that Wilcox & White set up
the Angelus Phonograph Company in 1917 as a sideline to their player
production.  Now there's something I didn't know!

Harold Bauer Collection (Library of Congress)
  http://lcweb.loc.gov/rr/perform/special/bauer.html
Contains four letters from Aeolian and four from Wilcox & White and
also some other player related stuff.  Someone might like to check
these out one day!

Deutsches Museum
  http://www.deutsches-museum.de/bildung/wette/welte.htm
This link shows a wonderfully restored Green Welte.  The links on the
page take you to detailed pages about the Welte recording process as
well as a few other instruments.  It in German but the pictures are
well worth a look, at the very least.

City of Meriden
  http://www.cityofmeriden.org/about/history.asp
This web site actually makes mention of Wilcox & White and that they
produced the first mechanical piano.  Well, we know that's not strictly
true, is it now!  ;)

Happy browsing folks

Adam Ramet
agr@lineone.net
http://website.lineone.net/~agr/index2.html (recently updated also)