Hi Mbj,here is a listing of Griffiths Registrations for County Carlow
 Now on looking at Peters Family,His first son Was Thomas,Who would Normally be named after his Father.I have Marked off The Thomas's on here,There are about 3 or 4 Thomas Kavanagh In the Carlow Registrations Most Were Landowners
 With Many Acres
 Mike
  
  
 Kavanagh, Barthw. T/Carlow Staplestown-Road/The Clash   
Kavanagh, Charles T/Carlow Bridewell-Lane   
Kavanagh, James T/Carlow Charlotte-Street   
Kavanagh, John Carlow   
Kavanagh, John T/Carlow Bridewell-Lane   
Kavanagh, John T/Carlow Dublin Rd.   
Kavanagh, Michael Mortarstown Upper   
Kavenagh, Thomas T/Carlow Mc Kenny's Lane <<
1851 For Carlow County
 
Kavanagh, Jeremiah Chapel Street Wells   
Kavanagh, Paul Chapel Street Wells 
Leighlinbridge in the Parish of Wells, Co Carlow
 
 21 Kavanaugh, Patrick Cullen, Hugh House and land 
PLU CARLOW
6 James Kavanagh same House & land 
Parish of Ballinacarrig     
Townland of Bennekerry 
 
6 a Charles Kavanagh Henry Steele House, offices & land 
6A} James Kavanagh Same {Land 
6B a} {House, offices and land 
9A} John Kavanagh Same {House and land 
9B} {Land 
9C} {Land 
9C a Gregory Brennan John Kavanagh House and garden 
15} Charles Kavanagh Hon. J. Colborne {Land 
13A c} {House and garden 
Parish of Dunleckny     
Townland of Boherduff 
 
 22 A} Thomas Kavanagh In fee {Land (bog pasture) <<
22 B} {Land 
22 C} {House and land 
22 D} {Land 
22 E} {Land (mountain pasture 
 
29 Thomas Kavanagh In fee Land <<
29 a Vacant Thomas Kavanagh House <<
 1 e Morgan Kavanagh same House, office and garden 
 16 Thomas Kavanagh In fee {Land (bog pasture) <<
{Turbary 
 23 A} Stephen Kavanagh same {Land 
23 B} {House, offices and land 
23 C} {Land 
24 A} Eleanor Kavanagh same {House, offices and land 
24 B} {Land 
24 C} {Land 
24 D} {Land 
29 A} Catherine Kavanagh same {House, offices and land 
29 B} {Land 
32 A} James Lannon Thomas Kavanagh {House, offices and land 
32 B} {Land 
Townland of Newtown
Barony of St. Mullin's Lower, Poor Law Union of New Ross 
Parish of St. Mullin's 
Townland of Ballybeg, Big  
  
 Kavanagh, James Cloonaloo   
Kavanagh, James Graigue (Maryborough St.)   
Kavanagh, John Graigue (Killeshin St.)   
Kavanagh, John Graigue (Killeshin St.) Comment : Stonecuter 
Kavanagh, John Leagh   
Kavanagh, Martin Graigue (Sleaty St.)   
Kavanagh, Mary Coorlaghan   
Kavanagh, Maurice Graigue   
Kavanagh, Michael Coorlaghan   
Kavanagh, Michael Graigue   
Kavanagh, Michael Rossmore   
Kavanagh, Mrs. Bridget Graigue (Wellington Quay)   
Kavanagh, Patrick Coorlaghan   
Kavanagh, Patrick, Jr. Coorlaghan 
KILLESHIN PARISH 
The Valuation for County Laois was taken c1851/52.
 
12 a Michael Nolan Robert C. Browne, Esq. House and land 
- b Maurice Kavanagh Michael Nolan House 
- c Patrick Kelly Michael Nolan House 
- d Mary Donohoe Michael Nolan House 
- e Andrew Nolan Michael Nolan House and garden, 
- f John Tunstead Andrew Nolan House 
- g James Donohoe Andrew Nolan 
 
22 - Michael Kavanagh In fee Land 
KNOCKBEG.