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The 1892 marriage record you mentioned has the following information: The marriage occured in St. Mary's chapel in Duneane Co. Antrim, Registrar's District of Toome in the Union of Ballymena (also the registration district of Ballymena).
There are various resources (some free, some subscription) to use to search further back for your ancestors. www.irishgenealogy.ie (free) Roots Ireland (subscription) www.familysearch.org (free) Find My Past (subscription)
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