this is the best match that I see on the 
Familysearch Irish Civil Index : 
 Name: Eliza Higgins
 Registration district: Rathdrum
 Record type: Birth
 quarter and year: Apr - Jun 1889
 Volume: 2 / Page: 867
The registration district of Rathdrim covers a large area in southern Co. Wicklow - including : Arklow, Wicklow Town, Rathdrum etc
You can order a birth cert from the GRO (
http://www.groireland.ie/apply_for_a_cert.htm) using the above index details - a cert will give more details - e.g. father's name and occupation (can be used to compare to the marriage details you have), mother's name and maiden name, place and date of birth, etc
I think Esther & Hestie are equivalent - records for my own gg-grandmothers records have the same variation.
Shane