The earliest of the 1764 Lyons on WikiTree is from before 1200, there are also a list of suggested alternative names that may be related on the Lyons surname page.
Once you have added the line you know of perhaps it will join with some othe line and take you a long way back, or you could post the link to your 1809 profile so we can see if we can find a link for you, or suggest where you should look.
