Griffiths valuation was a land valuation carried out on behalf of the then government by Richard Griffiths who had previously carried out a boundary survey of Ireland for Ordinance Survey maps of Ireland (1825-44). The land valuation which began in 1848 was completed in 1868. The valuation of the county of Londonderry (relevant to Kilkie) was completed in 1859.

A study of Griffiths valuation shows a number of Kilkie entries all dated as 1858 for Londonderry and 1862 for Antrim.

Firstname	Surname	County	Parish	Townland
William	Kilky	Londonderry	Clondermot	Fincarn
George	Kilky	Londonderry	Clondermot	Lismacarol
James	Kilky	Londonderry	Clondermot	Lismacarol
William	Gilkie	Antrim	Kirkinriola	Townparks
James	Gilkie	Antrim	Ahoghill	Moyasett
Elizabeth	Gilky	Antrim	Kirkinriola	Townparks

According to the map references George and James Kilky lived a few houses from each other and William Kilky was about 2 miles away. Whether the Kilky were related is unknown but is a possibility worthy of future study.

The nature of the Antrim Gilkie and Gilkie also requres more research.