A birth cert will show the following details :
Registration District, County etc
Date & Place of Birth
Name (of Child)
Sex
Name and Surname and Dwelling Place of Father
Name and Maiden Surname of Mother
Rank or Profession of Father
Signature, Qualification and Residence of Informant
Date of Registration
Registrars name
GRO research certs cost 4 euro, to request these, download the order form from this link (MSWord document, Dept.of Social Protection or Welfare),
Print out a copy and enter your details in section 1, and your credit card details in section 3. Put the index references for the record you wish to order (name, record type, reg. district, record type, year/quarter, page & volume) in section 2. If you have several certs to order, you can print the references for these on a separate page and attach to the order form.
Ignore the irrelevant sections on the form such as exact date of birth etc, PPS number etc, the forms are more geared to modern official certs for legal purposes. In section 3 tick the 'photocopy' option to select the cheaper research certs. Post (or fax) the completed form to the GRO, the head office address is at the top of the form.
Certs are normally delivered by post, but you can opt for delivery by email by ticking the option in section 1 and including an email address.
Some of the details on the familysearch data are internal LDS references,film number image no etc , and not relevant to the GRO, so the details you need to include are as follows :
Name: Maureen Jane Murray
Event Type:Birth
Quarter and Year:Jul - Sep 1923
Registration District: Dublin North
Volume :2 / Page :283
If you get the cert post the details here, particularly Frances' maiden name, and we can search for her marriage to Patrick.