Thank you for that.
It may not be definitive, but I think it gives a good "big picture" account!
There are several familiar names found in the listed "Immediate Lessors" ie Flood, White, Palmer,Fitzpatrick and Dunne, all names found in direct relationship to the Kingsmill family, and also Walpole, another name connected to the family. In my message I meant to say that my Henry Kingsmill was a sub Sheriff, Flood was Sheriff, and Henry was a land agent for his brother Luke. It would appear that nearly all the Kingsmill's came to Australia, other than Henry and his elder son Luke, who died at Castle Bellingham. I am wondering if Luke may have been a land agent for the family also, living equidistant north of Dublin.
I had read somewhere that possibly landowners were mostly buried on their estates, and that is why there is scant little to be found of these family names in cemeteries, and if there were any antaganism (which there was), possibly these graves may have been turned over, which sounds like a creditable theory to me.
I also learnt from the blurb of the "events page" Kilkenny Family History group, that recently an historian was to speak on the danger of the occupation of Land Agent, and in that county alone there were 9 deaths in 15 years. The land agents were apparently singularly blamed for the potato famine, as is peoples wont! It is little wonder that the family had a mass exodus!
Interesting that Henry's sons, Henry and John, worked in the equivalent job in Australia as Sheriff's Bailiff's (Sydney, Dungog and East Maitland)...appears to be the family trade going back eons.
It would appear to me, looking at the "big picture" that there is a connection to "Edward Flood esq."landowner, or at least his predecessor.