You may find additional reasearch in the papers of L.L. Nunn which, I
believe, are with the Teluride Foundation at Cornell University, Ithica,
New York.  Nunn was a mineing engineer who knew of Tesla's work and with
Westinghouse proved the value of AC current in the mines of Teluride,
Colorado.  Nunn founded a small, isolated but excellent college in the
high desert of California, Deep Springs College, one of the most unique
schools in the U.S..  Deep Springs may also have additional information
on Tesla.  Although I am certain that Deep Springs is on the internet
somewhere, I do not have an address.
 
P. Lee
Director, Los Angeles Maritime Museum