It is rather a long time since my post on here and your reply; but I hope that it isn't too late to apologise for not thanking you for replying and the offer of information on the Lygon/Ligons family but I have only just found the reply.
I did find a book on-line about the Lygon family which I was able to read.
I still haven't found a link between my Liggins ancestors and the Lygon/Ligon family but it isn't important as the interest is in the researching and turning up new information sometimes.
Thank you again,
David