Will  405, of Mrs Eliza Gethin (late husband Percy), Cork, extensive property owner including Upton (Garryhenkera) mentioned Dr. Boyle Coughlan, leaves £20 to ‘To the mulatto boy known as James Kelly, the sum of £30 the interest to provide for his clothing’

The Irish Manuscript Commission have digitalised some of their old publications.  This is from a series on Memorials in the Registry of  Deeds.  These survived the destruction of 1922.

http://www.irishmanuscripts.ie/servlet/Controller?action=digitisation_backlist

There are references from time to time in contemporay Cork records to mulattos/negroes/blacks in wills, deeds and newspapers. Cork had extensive links with the West Indies and had a number of sugar mills.

Many of the Irish who went to the West Indies, as Sugar Planters, Merchant or Administrators had concubines or second families with women of African origin.

Among the slave owners in Barbados who were compensated in 1820 for emancipation was the Nathaniel Evansons who were related to the same family of Cork, Bandon and Durrus. One of the Durrus family had married in Antigua c 1750.