Dál gCais or
The Dalcassians of Thomond

In the table below you will see four (4) areas of concern. 

In column (A) you will see the Coats of Arms of each Dalcassian Sept Family.
In column (B) you will find a family or clan website if available.
In column (C) you will find Family names and variations, and links to the Pedigrees they come from.  Also included in this column are links to a tartan page that will show a tartan that the individual family is authorized to wear.  Only those tartans that are registered with the Scottish Tartan Society will be listed.
In column (D) are the County they were mostly located in.

At the bottom of the page you will see the references used to determine these family links to the Dalcassian Sept.

If you see any missing family names, coats of arms or pedigrees, please let the webmaster know so he can update this page.

(A) Coat of Arms (Click for larger view)	(B) Website Links	(C) Links to Pedigrees, Histories and References	(D) Family Locations
	Ahern	O'Ahearne   O'Brien (Aghearn, Ahern, Ahearn, Aherin, Aheron) (1,2,3,4)	Clare, Cork
		Arkin (Harkin, Herkin, Horkan, Horkin) (8)	Clare
		MacArthur   O'Brien (Arthur, Arthurs, Arthure, Aurthur) (1,2,3)	Limerick
		O'Bellian (O'Bellian)	Offaly
		Bernard   O'Brien (1,2)  (O'Brien Tartan)	Clare
		O'Bilrey (O'Bilrey)	Limerick, Mayo
		Blair   O'Brien (Blare, Blaire) (1,2,3)	Clare
		Blood   O'Brien (5)	Clare
	Boland	O'Boland   O'Brien (Bolan, Bowland, Bullion, Beolan, Beolane) (1,2,3,4)	Clare, Sligo
		Booth  Heffernan (1)
		O'Brady  O'Grady (Brady) (1,2)	Clare, Limerick
		O'Brennan   O'Brien (Brennan, Brannan, Briane, Brenon) (1,2,3,4)	Clare
		Brick (Badger) (8)	Clare
	O'Brien	O'Brien  O'Brien 1 - 10 (O'Briain, O'Bryan, O'Brein, O'Brian) (1,2,3,4)  (O'Brien Tartan)	Clare, Limerick, Tipperary, Waterford
		MacBroudin  MacBrody (MacBruodin, MacBrodin, MacBrody) (1,3)	Clare
		O'Brody	Wexford, Mayo
		Bryan   O'Brien (McBryan, O'Bryan, MacBryan) (1,2,3,5)  (O'Brien Tartan)	Clare
		Bryant   O'Brien (1)  (O'Brien Tartan)	Clare
		Cahir (Caher, Charles) (8)	Clare, Tipperary
		Canny (Canney, Cannie, Cahenny) (8)	Clare
		O'Carmody (Carmady, Kermode, Kermody) (8)	Clare, Tipperary
		Carney (Carny, Cairney, Fox, Kearney) (8)	Tipperary, Cork
		O'Casey   O'Brien (Casey, MacCasey, O'Cahassy, Kasey) (1,3,4)	Cork, Dublin, Fermanagh, Mayo, Limerick, Roscommon
		O'Cashin  History 1 (Cashen, Cashine, McCashine) (1,3,5)	Leix
		MacClancy  MacNamara,  Clancy (Glanchy, Clanchy, Clanchie, Clancy, Clinch, Glancy, Clansy) (1,3,4)	Clare, Leitrim
		O'Clanchy	Cork, Limerick, Clare
		Clohessy (Clossey, Clohessey) (8)	Clare, Limerick
		MacClune (MacGlune) (2,3)	Clare
		O'Conklin	Limerick, Clare
		Connerty (Connertie, Coonerty) (8)	Clare
		Connolly (Connally, Connelly, Conneely, Conley, Conly, Connley) (8)	Clare
		O'Connor (of Corcomroe) (2,3,4)	Clare
	Conroy	MacConry  Conroy (O'Conroy, Conry, O'Mulconry, Conery, Conary, Conrahy) (1,3,4)  (Conroy Tartan)	Galway
		MacConsidine   O'Brien (MacConsidin, Consadine, McConsidn) (1,2,3,4)  (O'Brien Tartan)	Clare
		O'Considine  History (1)	Clare
		Conway (Conoo, Cunnoe) (8)	Clare
		Coombe   O'Brien (1)	Clare
		O'Cormac	Limerick, Down
		O'Cormacan   O'Brien (Cormican, Cormacin) (1,2,3)	Clare
		McCormick	Cork, Tipperary
		Cosgrave   O'Brien  Hogan (Cosgrove) (1,2,3,5)	Clare
	Coughlan	MacCoughlan  Coghlan (Coughlan, Coghlan, Coghlen, Coghlane, Cohalan) (1,3,4)	Kings Co.
		Creagh  O'Neill (1,2,4)	Clare
		Crohan (Croan, Croghan, Crone, Crown, Cruffan) (8)	Tipperary
		O'Crotty   History (Crottie, Crotty) (1,2,3,5)   (O'Brien Tartan)	Tipperary, Waterford, Cork
		Crowe (MacEnchroe, MacEnroe) (8)	Clare
		Cuggeran (Cogerane, Coggeran, Cofforan, Cogran, Coughran) (8)	Clare
	Curry	O'Curry   O'Brien,  Coghlan  Curry (Corry, Cory, Corra, Currie, Corrie, Corey) (1,2,3,4)	Clare
	Curtin	MacCurtin  History (MacCruitin, MacCuirtin, Curtaine, Curtin, Jordan, Jourdan) (1,3,4)	Cork, Kerry, Limerick
		Daffy (Daffie) (8)	Clare
	Davoren	O'Davoran  History (Davoran, Davoren, Davorin, Davern) (1,3,4)	Clare
	O'Dea	O'Dea   O'Dea, Quinn (O'Day, O'Dee, Daw, Day, O'Dayly, Deady) (1,2,3,4)	Clare
		Dillane (Dullane, Dullen, Dulligan) (8)	Munster
		MacDonnell  History (McDaniell, McDonald, Donnell, Donel) (1,2,3,4)	Clare
		Downey   O'Brien (MacEldowney, Muldowney, Gildowney) (1,2,3,4)	Clare
		Ducey (Doocey, Ducie, Ducy, Dufficy) (8)	Tipperary, Waterford
	Duhigg	O'Duhig  History (1)	Clare
	Durick	Durick (O'Duvrick, O'Durick) (6)	Tipperary
	Durkin	Durkin  Durkin (1)	Clare
		MacEniry  History (MacEninry, Mac Henry, McHenry, O'Henry) (1,2,3,4)	Limerick
		Eustace   O'Brien  Eustace (Ustace, Eustice, Eustis) (1,2,3,5)	Clare
		Fallaher (Falahee, Falahy, Falsey, Fellaghy, Flaher) (8)	Clare, Tipperary
		Fennell (Fingal, Finnell, Fynnal, Fynnul) (8)	Clare
		Fennelly (Fenellie, Fenley, Findlay, Finley, Finnally, Fynnola) (8)	Clare
		Finn (Fin, Finne, Fionn, Fynn, Fair, Fayre) (8)	Tipperary
		O'Finnelan  History (O'Fenelan) (1,5)	Westmeath
		Flattery   O'Brien,  Clancy (Flatery) (1,2,3)	Clare
	Flood	Flood    MacNamara (1)	Clare
	Fogarty	O'Fogarty   History (Fogerty, Gogarty) (2.3.4)	Tipperary
		O'Galvin (O'Galvin) (7)	Clare
		Gilduff (Gilladuff, MacGilduff, Kilduff) (8)	Clare, Galway
		Glinn   O'Brien (1)	Clare
	Glynn	Glynn   O'Brien (McGlynn, O'Glynn, Glenn, Glenny) (1,2,3,5)	Clare
	O'Grady	O'Grady  O'Grady (Graddy, O'Brady, Gready, MacGrade) (1,3,4)	Clare, Limerick
	McGrath	MacGrath   O'Brien (Magrath, MacGraw, Magraw, MacGra) (1,3,4)	Clare, Waterford
	Griffin	Griffin  Griffin  O'Griffy (Griffen, Griffins, Griffy, Grifith, O'Griffy) (1,2,3)	Clare, Kerry, Cork, Limerick
		O'Gunning  O'Gunning (2,3,5)	Limerick
		Hallinan (8)	Limerick
	O'Hannon	O'Hannon  O'Hannon (Hanneen, Hannen, Hannin, Hannon) (3,4)	Clare, Limerick
		Hanraghty (Enright, MacErraght, Hanratty, Kenraght) (8)	Tipperary
		O'Hanrahan  Hanrahan (Handrahan, O'Hourahans, Hourihane, Hourihan, Hanraghane) (1,2,3,4)	Clare, Tipperary
		Harkin (Harkan, Harken, Herkin, Horkan, Horken, Horkin) (8)	Clare, Cork
		Harley  MacNamara (1)	Clare
		Harrigan (Haraghan, Harahan, Harahane, Harrahan, Harran, Herrigan, Horrigan, Horohan, Horan, Horgan, Horgane) (8)	Clare
		O'Hartigan  O'Grady (Hartagan, Hartican, Hart) (1,3,4)	Clare, Limerick
		Harty (Harraghty, Hartey, Hearty) (8)	Tipperary, Cork
	O'Hea	O'Hea  MacNamara (Hay, Hayes, Hughes) (1,3,4)	Cork
	O'Healy	O'Healy  O'Healy  Hally  Haly (Haley, O'Hely, O'Haly, O'Healihy, Hally, Heally) (1,3,4)	Cork
		O'Heap  History (1)	Clare
	O'Hearn	Hearne   O'Brien (Hearn, Ahearn, Ahearne) (1,2,3)	Clare
		Heever (Hevor, Howard, Hure) (8)	Munster
	Heffernan	O'Heffernan   O'Brien  Heffernan (Hiffernan, O'Heffernain, Heffernane, Hefferan, Heyfron) (1,3,4)	Limerick
		Hegarty (Hearty, Haggerty) (8)	Clare, Offaly, Cork
		O'Hehir  Hehir (Hare, O'Hare, Hegher) (1,3,5)	Clare, Limerick
		Heron   O'Brien (1,2)	Clare
		Hever (Howard, O'Hure) (8)	Clare, Limerick
	O'Hickey	O'Hickey   Hickey (Hickie, Hicky) (1,3,4)	Clare
	O'Hogan	O'Hogan   O'Brien  Hogan (Ogan, Ougan, Hogin, Hogen, Hogane, Hogain) (1, 2,3,4,8)	Cork, Tipperary
		Hogg  Durkin (Hogge) (1)	Clare
		Honeen (Greene, Honan, Hounane) (8)	Clare, Kilkenny, Cork
		O'Hurly   O'Brien,  MacNamara  O'Hurley (Harley, O'Hurley, Herlihy, Murily, Murhila, de Hurle) (1,2,3,4)	Clare, Cork, Limerick
		McInerney  (History) (Nerney, Kinnerk, Macanerny, McInnerney) (4)	Clare, Limerick
	Kearney	O'Kearney  Kearney (O'Carney, Carnie, Carney, Kearney, Kerny, McCarney, O'Kerney, Keherney) (1,2,3,4)	Mayo, Tipperary
		O'Keaty   (2)	Limerick
		O'Kelleher   O'Brien  Kelleher (Keller, Kelliher) (2,3,4)	Kerry, Cork
	O'Kennedy	O'Kennedy   O'Brien  Kennedy (Quenedy, Kenneday, Kenedie, Kenedy) (1,3,4) (Kennedy Tartan)	Tipperary
		MacKey (MACKAY, MACKEE, MACKIE, MacKay, MacKee) (8)	Tipperary
	Kielty	Kielty  O'Dea, Quinn (1,2)    (Quinn Tartan)	Clare
		Killeen   Durkin (1)	Clare
		Kinnane (Conane, Cuneen, Ginnane, Quineen, Quinnane) (8)	Munster
		Lane  Hanrahan (Laney) (1)	Clare
		Larkin (Larkan, Larken, Larcom, Larking, Lerkin, Lorkan, Lorkin, Lorking, Lorcan, Lorcayne, Lurkan, Lurkayne, Lurkin) (8)	Tipperary, Clare and throughtout Munster
		Lerhinan (Largan, Lernihan, Lornan) (8)	Clare
		O'Liddy  History (Leddy, Liddy) (1,2,3,5)	Clare, Tipperary
		O'Loughlin    History (O'Loghlen, O'Lochalinn, O'Laughlin) (2, 3, 4)	Clare
		Lynch  Lynch (1)   (Lynch Tartan)	Clare
		O'Lonergan   O'Brien Londrigan, Ladrigan, Lundergan) (1,2,3,4)	Tipperary
		MacLysaght  Lysaght (Lysat, Lysaght, MacGyllysaghta) (1,2,3,4)  (O'Brien Tartan)	Clare, Cork
		Lucas    Eustace (1)
		Magan   O'Brien (1,3)	Clare
		Maglin   O'Brien (1,2)	Clare
	MacMahon	MacMahon   O'Brien  MacMahon (Mahon, Maghan, Mann, Maughan) (1,2,3,4)  (O'Brien Tartan)	Clare, Limerick
	O'Mahoney	O'Mahony  O'Brien (1,2,3,4)  (O'Brien Tartan)	Clare, Cork
		O'Maloney   O'Maloney (Mallowney, Maloughney, Malowny) (2,3)	Clare
		O'Markahan (2)	Clare
	O'Meara	O'Meara   O'Brien (O'Mara, Marra, Marah, O'Meera)) (1,2,3,4)	Tipperary
		Mescal (Maxwell, Mescall, Meskall, Meskell, Miskell) (8)	Clare, Galway, Limerick
	O'Moloney	O'Molony  Moloney (O'Moloney) (1,2,4)	Clare
		Moroney (Morony, Mulrony, Murroonie, Murrony, Mulrooney) (8)	Clare
		Mulcashel (Mulcassell) (8)	Clare
		Muldowney   O'Brien (1,2,3,4)	See Downey
		Mulqueen (O'Mulqueen, Mulqueeny) (5)	Clare
		Mulvey (Mulbleahy, Mulbleehie, Mulbleehy, Mulveehy) (8)	Clare
		Mulvihill (Melville, Mitchell, Mullavil, Mulmeel) (8)	Clare
		O'Naghten (Naughton) (2,3)	Clare
	MacNamara	MacNamara   O'Brien, Macnamara (MacConmara) (1,2,3,4)	Clare
		MacNevin (Knavin, Navan, Naven, Navin, Neven, Niven) (8)	Clare, Tipperary
		Neylan (Neilan, Nelan, Nellan, Neylad, Nilan) (8)	Clare
	O'Neill	Nihell(O'Neill) (Neal, Neale, Neil, Neill, O'Neil, O'Neill, Nihil, Nihill) (8)	Clare, Limerick
	O'Noonan	O'Noonan   O'Brien  (O'Nunan, Noone, Nuane, Neenan) (1,2,3,4)	Cork
		Padden  O'Brien   Paddin (MacFadden, Patten) (1)  (O'Brien Tartan)	Clare
		Perkins  O'Dea,  Quinn (1)	Clare
	Plunkett	Plunkett   O'Brien  Plunkett (Plunket, Plunkitt) (1,2,3,4)  (O'Brien Tartan)	Clare
		Power   O'Brien,  Powers  Eustace (de Poher, Powre, Powers, Poor, Poors) (1,2,3,4)	Clare
		Quilty  O'Dea,  Quinn (1,2)	Clare
	Quinn	O'Quinn  Quinn  Heffernan (Quin, Queen, Quen, O'Cuinn, Quinne, Quain) (1,2,3,4)  (Quinn Tartan)	Clare, Longford
	Quirk	Quirke   O'Brien (Quirk) (1,2,3,5)	Clare
		Rabbitt (Rabitt, Rabitte, Rabbit, Coneany, Coneeny, Conheeny, Conine, Cuneen, Kinane, Kinneen, MacConeeny, Neeney) (8)	Clare
		O'Reddan  Reddan (Redden, Rudden, Ruddan, Rodan, Reddin, Ruddanes) (2,3)	Clare
	O'Reagan	O'Regan   O'Brien (Reagan, Reegan, Ragan, Raygan) (1,2,3,4)	Clare, Cork
	O'Reidy	O'Reidy   O'Reidy (Reddy, Riedy, Reidey, Reedy) (2,3)	Tipperary, Clare, Kerry
	Roan	Roughan  Quinn  Roughan (Rowhan, Roan) (1)  (Quinn Tartan)	Clare
	Scanlan	Scanlan   O'Brien (O'Scannell, Scanlan, Scanlane, Skanlane) (1,2,34)	Clare
		Scarry (Scorry, Scurry, Skarry, Skerry) (8)	Waterford, Kilkenny
	Scully	O'Scully  History (Skully, Scully, Scullion, Scullin, Sculy) (1,3,4)	Teffia, or Westmeath
		O'Seasnain  O'Brien (O'Sexton, Sexten, Sextan) (1,2,3,5)	Clare, Limerick
	Shanahan	O'Shanahan Shannon (O'Shannon, Shanahan, Shannon, Gilshenan, Shannen) (1,2,3,4)	Clare
	Sheedy	Sheedy  Sheedy (MacSheedy, Silk, Silke) (1)	Clare
	Sheehan	O'Sheehan  History (O'Sheahan, Shane, Sheean, Sheen) (1,2,3,4,5)	Limerick
		O'Slattery  Slattery (Slattary, Slatery) (1,2,3,5)	Clare
		Spellan  Spellan (O'Spealain, Splaine, Spollen, Spellman, Spilman) (1)	Clare
	Spillane	Spillane  History (O'Spellan, Spelman, Spilman, Spollen, Spillers) (1)	Clare
		Stone   MacNamara (Stoney) (1)	Clare
		Teige (MacCaig, MacKeag, MacKeague, MacKifue, Keeghe, Teage, Teague, MacTeig, Teigh, Teighe) (8)	Clare
		Thynne (Tine, Tinne, Tuyne, Tunny) (8)	Wicklow, Kilkenny
	Torrens	Torrens   MacNamara (1)	Clare
		Tubridy (Ó Tiobraide, Tipraite, Tipraiti, Tubrid, Tibraiti, Tipraide and Tubrit	Clare
	O'Twomey	O'Twomey   O'Brien  History (Toomey, Toomy, Twomy) (1,3,4)	Cork, Kerry
	Woulfe	Wolf  O'Dea,  Quinn (1,2)   (Quinn Tartan)	Clare

REF:

(1)  Irish Pedigrees by O'Hart, Vol I
(2)  The Surnames of Ireland by Edward MacLysaght
(3)  The Book of Irish Families Great & Small by Michael C. O'Laughlin
(4)  Irish Families by Edward MacLysaght
(5)  More Irish Families by Edward MacLysaght
(6)  Slainnte Gaedheal is Gall, Irish Names and Surnames by Patrick Woulfe
(7) Clans and Families of Ireland and Scotland: An Ethnography of the Gael A.D. 500 - 1750 by C. Thomas Cairney, Ph.D.
(8) Irish Septs, Vol 1