Introducing James and Giddie McGregor

My wife's new-found cousin has been kind enough to send some scans of family photos our way, and of those we've received thus far the most cherished is this photo of James and his third wife Ida "Giddie" Calhoun. I am uncertain of when the photo was taken, though judging from their clothing I would assume this is a wedding photo and would be dated around 24 December 1897.  It is credited to The Smith Photo Co., but I can find no information about that entity.