Speaking of a mineralogical group, Stan, below is a phenominal web site
set up by a very elderly, recently retired veterinarian in Wausau,
Wisconsin where I reside have of the week and his son. Though not
diffusionists, per se, Dr. Johnson and his son (I believe from St.
Louis) have an exceptional collection of artifacts from both the
ancient and historic mining eras in the Great Lakes.

http://www.copperculture.homestead.com/

Doc welcomes tours and has had many groups of school children as well
as researchers, professors from distant parts of the country. When I
accompanied Ancient American friends there a couple of years ago,
Marquette historian Fred Rydhom interviewed Doc Johnson to include in
his now, recently-released book.

Dr. Johnson and his wife were also very active in an international gem
and mineral society and much of that collection is also on display in
the basement.

Anyone driving through Central Wisconsin who would like to visit Dr.
Johnson's basement old copper museum before the collection is
eventually moved south to the son's collection, I would be happy to set
up a time with the Johnson's.

Susan English
beldingenglish@...