Hi Barbara Anne,
Regarding the name "Owen's Field" I have not found any record in the area of Kinvarra. Names such as this were normally local and apparently came from the owner - Owen O'Dea. I did not find any person named O'Dea in the Tithe Records for Kilenhy East or West in 1826
I attach a copy of the 1901 Irish census for Killinny East. Bridget O'Dea is recorded as "Head of House". In Form B1 attached she is not recorded as the Land Owner.
In regard to burials - there are 9 cemeteries recorded in the parish. Mount Cross Old is a possibility. Mount Cross New is from 1948.
The following Free Sites may be of interest to you: www.askaboutireland.ie - Land Valuation - Griffith's - 1840's/50's - www.irishgenealogy.ie Civil records are from January 1st 1864. Townland maps - logainm.ie