Madame Ducroix - OH FMMMM

Received the Marriage Certificate and it says nothing about Emily Banham. It is definitely the marriage of John McCrohon, Sergeant in 4th Regt. of Foot to Emily Banham of this parish by banns. Emily signs with a mark. If it was the wrong name she wouldn't have known. We know for sure when an where they married, but not whether it was her maiden nameor surname. If we could find the marriage of Emily to Banham - the parents of the child born in Barbados, it would help.