Hi Dennis . . . Welcome to I.R.O. . .
and to Roscrea Town in Co.Tipperary. . ans a few miles from Leap Castle ( in Kings Co ). . . now referrred to as Offaly County . . and a private house (still in full use ) called Knock . .
(see map below)
The red pointer . . indicates Leap Castle . .
to the left of that marker . . you will see the figure ' 640 '. . .
below 640 . . before the road . . there is a black dot . . indicating a house . . I believe this to be known as Knock House. . .
In a random search of the surrname Hinsey . . in the Roscrea and surrounds district . . (see below) . .
Researching around the area of Roscrea (the Town) . . is tricky . . because. . . three County boundries . . meet at this area . . . Birr to Roscrea is 12 miles
A personal observation . . . I haven't delved in to the " Thompson " family of names . . you appear to have researched them fairly well . . .
Come back to me . . if . . a spacific question arises . . .
Census (1821) . . . below . . does show Brid.Lynch (8) . . . district ...Leap . . Knock . . . Knock may refer to the hill district above Leap Castle . . .
That . . for now is what I have found .. . I do hope it adds to your sum of knowledge . . .
Cheers . . Eamonn. Roscrea.