I believe there is another child for Luke and Mary...There was an Elizabeth Johnson baptized 19 December 1806 at Wrawby...the parish records indicate that the parent s were Luke and Mary. One might thing this child died young as there is another daughter Frances Elizabeth baptized 23 February 1810 again at Wrawby.
There are definite indications that Luke married again...in Newton on Trent. The marriage may be found again in the parish register.
I have seen the marriage record for Luke and Mary...It is a very difficult to read the date...it is my belief the date should be 1806.