my seven times great-Grandfather was Abner Brooks Casey 1700-1796. He and his brother Peter were from Tyrone County, possibly around Dungannon. They came to America in 1725. Peter wound up in West Virginia, and Abner was finally in South Carolina. Would love any info I can gain on either, especially a paper trail to their parents.(Possibly John Casey and Sarah Brooks Casey).
Amy Turner
Statutory birth, death and marriage registration (in some jurisdictions called Vital Records) only started in Ireland in 1864, save for non RC marriages which were recorded from 1845 onwards. So you probably won’t find birth, death or marriage certificates for this family. For earlier years you usually need to rely on church records, where they exist. You obviously need to know the precise denomination in order to search the correct records. Not all churches have records for that period and not all are on-line.
RC records are mostly on-line on the nli site:
https://www.nli.ie/en/family-history-introduction.aspx
For other denominations, the churches usually hold the originals but there are also copies in PRONI, the public record office, in Belfast. A personal visit is required to access them. Access to the records there is free. This link explains what records exist, parish by parish:
https://www.nidirect.gov.uk/publications/proni-guide-church-records
As far as I am aware no parishes in Tyrone have any records for the early 1700s and so I doubt you will find any record of this ancestor. Research in Ireland in the 1700s is notoriously difficult due to the general lack of records.