Alexander was not a trapper or explorer, but he had some to do with the French Colonization of North American.
http://en.wikipedia.org/wiki/Sir_William_Alexander (http://en.wikipedia.org/wiki/Sir_William_Alexander)
http://www.electricscotland.com/history/canada/william_alexander.htm (http://www.electricscotland.com/history/canada/william_alexander.htm)
http://www.chebucto.ns.ca/Heritage/FSCNS/Scots_NS/New_Scotland/Scotland_New_Scotland_Menstrie.html (http://www.chebucto.ns.ca/Heritage/FSCNS/Scots_NS/New_Scotland/Scotland_New_Scotland_Menstrie.html)
http://www.undiscoveredscotland.co.uk/usbiography/a/williamalexander.html (http://www.undiscoveredscotland.co.uk/usbiography/a/williamalexander.html)
http://ns1763.ca/hfxrm/alexwill.html (http://ns1763.ca/hfxrm/alexwill.html)