Two of my 5x great grandparents are William and Elizabeth Maynard (nee Acerson) - William was born in Hitchin, Hertfordshire in 1772 and Elizabeth was allegedly born in Stotfold, Bedfordshire in 1774. I've found a record of their 1796 marriage in Shoreditch that mentions a Francis and Mary Acerson, who I believe may be Elizabeth's parents, but I can't find any information on them. The following is a picture of the certificate itself.

http://img266.imageshack.us/img266/1097/maynardacerson.png

And it says -

"William Maynard of this parish (bachelor) and Elisabeth Acerson of this parish (spinster) were married in this church by banns this 27th day of March in the Year One Thousand Seven Hundred and Ninety Six by me Joseph Rose minister".

William signed his own name, whilst Elisabeth made a mark as she was illiterate. Francis signed his name, whilst Mary made a mark.

Can anyone help me find any information on either of these three Acersons?