The spelling of the name is correct, but the amount of information
available about Mr. Paterson is sparse.
I did manage to find the answers to the questions you listed in your
clarification, although I wish that I could have provided greater
details. The information I have listed was obtained from a site
Blantyre, as you already know, was the name given to the palatial
residence constructed by Mr. Paterson. Blantyre went through many
different transitions over a period of 60 years, but is now , under
the ownership of Ann Fitzgerald Brown, an award winning luxury resort.
According to Blantyre.com, Robert Paterson was a successful merchant.
His good friend John Sloane, another successful merchant, invited Mr.
Paterson to visit Lenox, MA. Mr. Patterson loved the area and decided
to make Lenox his home. Construction began on Blantyre in 1901.
Although the site does not elaborate on the Ancestry of Robert
Paterson, it does state that his wife's ancestral home is located in
Lanarkshire, Scotland. Blantyre is patterned after his wife's
ancestral home. The residence is likened to a castle with "feudal
architectural features", and even included gargoyles. A pretty
impressive piece of construction, considering the architect supposedly
drew the plans on the back of an envelope.
I really enjoyed researching this question, and it was a pleasure to
provide you assistance.
Links of interest:
History of Blantyre
In case you want to email Blantyre Resort, perhaps to see if they
could provide greater details about Robert Paterson, you can do so
"robert paterson"+"art collection"
"anne fitzpatrick brown"+blantyre
"robert warren paterson"