Seceding, non-subscribing, and reformed congregations were formed in many areas of Northern Ireland. These congregations kept their own records. In 1840 most of these congregations rejoined the main body of Irish Presbyterians. The Seceders in Ireland. Presbyterian Historical Society of Ireland, 1982.
Records kept by Presbyterian ministers include birth, baptism, and marriage records.
These records are similar in content to Church of Ireland records except that mothers'maiden names are often given in the birth and baptism records. The session is the presiding council of a Presbyterian congregation. Minutes of session meetings often mention members of the congregation, appointments of committee members, and other items of congregational business. Occasionally records of births,christenings, and marriages are included in the minutes. Most session minutes are in local custody.