Hi Colin, Wondering if you have this history book.
http://www.ourroots.ca/e/toc.aspx?id=7584 The Wight story starts on page 185 and the Campbells you asked about in another query bio starts on page 244. Do sur-name searches in the book as there are many page numbers showing that can be clicked on for tidbits. I couldn't find anything on Backstrom. Butch