Hi Morris - Gordon Lightfoot doesn't check this website/message board. It is a fan based website.
From all accounts that I'e ever read about the Lightfoot family tree that Gordon belongs to it is highly unlikely that he is related to you in any way. His family origins are traced back to England (and Scotland) for several generations. His family came from England in the early 1800's.
If you click on this link you will find a Gordon Lightfoot family tree that was researched by one of the people who post here.
http://www.corfid.com/vbb/showthread...ht=family+tree - click onthe picture to enlarge the family tree details.