Help - DNA match and a Wingfield conundrum again

This another long story sorry, but I have put everything I know because I know it's frustrating to find stuff only to then find out I already knew or had it.

I have a DNA match on Ancestry of:
Shared DNA:*30 cM*across*2 segments
Unweighted shared DNA:*44 cM
Longest segment:*36 cM

I know it's low but I am interested because I think the match is a Wingfield and I have some mysteries of missing siblings, which I find so frustrating, of my 2nd Great Grandmother Emma Wingfield. Its the only name I recognise in the the tree of this DNA match.

Note: this possible match is named Emma Wingfield too, spelt Winfield on trees.

The children's relationship on the 1881 census is complicated because Pierce was married before which a lot of trees with this couple does not show and the ones I have looked at stop at Emma nothing before her marriage.

Emma married Pierce Patrick Driscoll in 1879. Pierce died in 1885

Marriage

https://search.ancestry.co.uk/cgi-bi...=successSource

Death of Pierce (father)

https://search.ancestry.co.uk/cgi-bi...Y1MTMwMTcyOS4w

It was a Roman Catholic marriage, Pierce's heritage is Irish, no full cert online so I sent for the certificate to see what Emma put for father's name.

It has John Wingfield occupation; Provisions Dealer. Could be true, could be a lie. On census she says she was born in Dalston, Hackney, London in approx 1857. I cannot find a possible birth on the GRO, FreeBMD or Ancestry.

I worked out the daughter named Mary isn't Emma's daughter but Margaret and son Pierce is. Pierce was married before to Margaret Howey transcribed as Hewey on Ancestry.

https://www.ancestry.co.uk/discovery...=successSource

Mary
DRISCOLL, MARY CATHERINE - HOWEY
GRO Reference: 1873 J Quarter in WEST DERBY AND TOXTETH PARK
Volume 08B Page257

Margaret

DRISCOLL, MARGARET ELLEN - WINGFIELD
GRO Reference: 1880 D Quarter in SAINT OLAVE SOUTHWARK
Volume 01D Page 245

Pierce

DRISCOLL, PIERCE PATRICK - WINGFIELD
GRO Reference: 1884 D Quarter in POPLAR Volume 01C Page 649

Emma married again after Pierce's death to Henry Moorhouse and Emma, Margaret and Pierce plus another daughter Adeline (birth reg below) emigrated to the USA. I think Mary may have died or married early on.

https://search.ancestry.co.uk/cgi-bi...Y1MTMwMzI5MC4w

Can't find full cert online will probably have to send for one but I will go to the Essex site to check so hold fire on that.
.
https://search.ancestry.co.uk/cgi-bi...;successSource')

MOORHOUSE, ADELINE CATHERINE -WINGFIELD
GRO Reference: 1891 J Quarter in WEST HAM Volume 04A Page 148

I can't find Emma before the 1879 marriage to Pierce a few possibilities in 1871 but birth place not London, servant, but up north which is possibly how she met him but more frustratingly I can't even find one in 1861 when she would have been too young to be on her own.

I was looking at a Emma Wingfield born in St Giles to a Hannah Murray plus another child Henry, but not sure at all about this. This Emma was illegitimate so that doesn't help.

MURRAY, EMMA -
GRO Reference:*1859 M Quarter in ST GILES & ST GEORGE Volume 01B Page 401

https://search.ancestry.co.uk/cgi-bi...5f9239a7be2dc1

Thank you, if you want to ask something before you go of searching please let me.