Margaret Hunter’s marriage to James McNea was registered in Belfast on 10.6.1845. (The husband’s name is recorded as McRea. That’s probably a transcription mistake). The marriage certificate should give you her address and other information about her. You can view the original certificate on-line on the GRONI website, using the “search registrations” option:
You will need to open an account and buy some credits. It costs £2.50 (sterling) to a view a certificate.
Statutory birth registration didn’t start in Ireland till 1864 so you won’t get birth certs for any children born 1845 – 1863. I found one female birth for the couple on 31.10.1864. The family address then was “Old Lodge, Belfast”.
For the children born before 1864 you would need to search church records but to do that you would need to know which church the family attended. Any ideas?
Here’s a bit about James McNea:
PRONI (the public record office) holds some leases for James McNea in the series D3747/2/1 to 5. (They are not on-line and so you would need to get a researcher to look them up for you).
Can’t see a death for James McNea in the statutory indexes, nor a will for him. Looked for marriages for the children in the Belfast area. Didn’t see any.
Post the details of the marriage cert here and we'll see if we can give any more help.