Uncletom was kind enough to email the pictures to me as I was unable to view them thru the links.

Having viewed them I would agree that this is probably not a Scottish Chieftain, but taken here in the States around 1865 (the 65?) judging in part from their dress. The reason why I believe it was taken in the States is comparing the gentleman's dress to those in this recent thread:
http://www.xmarksthescot.com/forum/1...143/index.html
leads me to believe that he too was a member of a Scottish-American Caledonian society (possibly east coast), as Todd mentioned in the linked thread. Not much to add on the wording.

I hope this helps.