The full details are:
Date: 12 Sep 1847
Groom: William Jay, Age 34, Bachelor, Labourer, Great Warley, Father: John Jay
Bride: Eliza Jay alias Hicks, Age 21, Spinster, , Upminster, Father: Edward Jay
From my research by 1851 she was a widow living back with her father. Her age is listed as 25.
Update: She had a child with William Jay before he died and checking on the GRO I can see the mother's maiden name listed as Hicks so it looks like that was her birth name and she was somehow adopted by Edward Jay.