Many thanks for your infomation.   I haven't as yet tied in the Thomas Lilwall with my family, but it is a piece of useful info regarding a Grandchild, and they hadn't had any children!  Unless if course Caroline may have had a child by a previous marriage.   
I have been told that the Lilwall family are recorded in the Lilwall Green  in about the 13th century, and it was named after a well called Lilla's well.   I have no evidence of this, just hearsay!
Many thanks