I have had a quick look at the details I have on Spreadsheet / plus some follow up on the Familysearch website. this suggests that Maria Susannah was the daughter of Edmund Ellingham and Mary. Tracing Edmund back is a bit tricky. There was an Edmund Christened on 15th March 1829. He may not have been an infant and so could be the parent. If he is correct then his parents were Daniel Ellingham and Hannah Brinklow who married on 13th Nov 1824.
nb I have Maria Susannah as being Christened on 4th June 1840. Some of the dates are obviously a bit suspect.