If at first you don't succeed......pie,pie,pie again?
Surely there are too many coincidences in the following set of data for there not to be a connection,but not yet a solution,to your quest:-
In the O'Donovan's Field Name Series compiled in the 1840s there is this entry for James Burke Esq at Burkes Court in Galway.The property is in the name of Sir John Burke(2nd Baronet as referred to previously,who dies in 1847 in Dublin.The other name-Hyacinth Clark is his agent.)
http://places.galwaylibrary.ie/asp/fullresult.asp?id=46413In 1851,there is an entry in Encumbered Estates for Edward Burke of Clonco/Burkes Court,with Hyacinth Clark named again.Given the death of Sir John Burke and the famine background etc,perhaps the estate was in trouble and selling off parts.
http://landedestates.nuigalway.ie/LandedEstates/jsp/estate-show.jsp?id=1083And where is the property of Burkes Court described as being situated? "..10 chains(220yds) from a castle that has a number of variant spellings including "Clondegoff"(It may also be that this is in the parish/diocese of Clonfert!)
http://www.travelmania-ireland.com/place.php?id=1034Further,Sir John Burke was a military man(Colonel of the 98th Foot),but,importantly,he was Vice Lord Lieutenant of the County.The Lord Lieutenant is in charge of the local militia-in this case,obviously the Galway militia,in which John Sutherland as previously described,served for 42 years.
I am not necessarily implying that James Burke Esq is the son of Sir John Burke(?),as he is not acknowledged as such as far as I can see.Sir John may be the landowner and some other branch of the Burke/De Burghs may be in residence.The Clanricardes were associated at some point.
As I also said before Sir John Burke had a sister who probably would have been known as Lady Anne due to her marriage.
Regards
Roger