Ann Wingfield, presumably one of Daniel's daughters died 1860 and was buried 23 Dec 1860, in Victoria Park Cemetery. Her adress is given as Victoria Road Dalston:
https://www.ancestry.co.uk/discovery...=successSource
It's not inconceivable that she had an illegitimate daughter, born were she was living when she died, who she called after her sister Emma. I'm not sayiing that that is the case, just that it is a possible scenario, with one member of your Wingfield family actually living in the same district where the mysterious Emma was born.