Hi Nathaniel,
No luck with the Cassidy-Breslin marriage record on www.rootsireland.ie/ but Margaret's baptism is there:
Name:Margaret CasidyDate of Birth:
Date of Baptism:08-Jan-1837Address:
Parish/District:KINAWLEYGender:FemaleCountyCo. Fermanagh
Father:James CasidyMother:Rose CasidyOccupation:
Sponsor 1 /
Informant 1:Patrick Droogan Sponsor 2 /
Informant 2:Brigid Droogan
I couldn't find any siblings.
This is the only one for Rose who, assuming Margaret was baptised soon after birth, would have been born around 1815. It's the only record between 1799 & 1840:
Name:Rose BreslanDate of Birth:
Date of Baptism:23-May-1812Address:BallygoneParish/District:ARDEEGender:UnknownCountyCo. Louth
Father:Thos BreslanMother:Mary ConnollyOccupation:
Sponsor 1 /
Informant 1:Thos Breslan Sponsor 2 /
Informant 2:Cathn Read
The marriage record shows Catherine's father as James:
Date of Marriage:09-Feb-1875
Parish / District:ENNISKILLEN
County:FERMANAGH
Husband
WifeName:ThomasSmyth
CatherineCassidyAddress:Maguires Bridge
MaguiresbridgeOccupation:FARMER
Age:22
22Status:Bachelor (Previously unmarried)
Bachelor (Previously unmarried)
Husband's Father
Wife's FatherName:PatrickSmyth
JamesCassidyAddress:
Occupation:FARMER
FARMER
Husband's Mother
Wife's MotherName:
Address:
Occupation:
Witness 1
Witness 2Name:HughJones
JamesSmythAddress:
Notes:
ENNISKILLEN R.C. CHAPEL, PARISH OF ENNISKILLEN. AGES GIVEN AS FULL
OVER 21.
Children:
Name:Mary Anne SmythDate of Birth:05-May-1876
Registration Date:18-May-1876Address:KillyroverParish/District:LisnaskeaGender:FemaleCountyFermanagh
Father:Thomas SmythMother:Catherine CassidyOccupation:Farmer
Sponsor 1 /
Informant 1:Thomas Killyrover
Name:Rose Anne SmythDate of Birth:06-Jun-1879
Registration Date:16-Jun-1879Address:KillyroverParish/District:LisnaskeaGender:FemaleCountyFermanagh
Father:Thomas SmythMother:Catherine CassidyOccupation:Farmer
Sponsor 1 /
Informant 1:Thomas Killyrover
Col