patsy these may give you some idea

 

Church Baptism Armstrong Bridget 1845 Co. Tipperary
 Church Baptism Armstrong Bridget 1859 Co. Offaly

 Church Baptism Calaghan John 1847 Co. Tipperary
 Church Baptism Callaghan John 1851 Co. Tipperary

 

 Church Marriage Callahan John 1863 Co. Tipperary

 Church Marriage Armstrong Bridget 1864 Co. Offaly

Action Source Surname First Name Year County
 Census Callaghan Bridget 1901 Co. Tipperary
 Census Callaghan Bridget 1901 Co. Tipperary
 Census Callaghan Bridget 1901 Co. Tipperary
 Census Callaghan Bridget 1901 Co. Tipperary
 Census Callaghan Bridget 1901 Co. Tipperary
 Census Ocallaghan Bridget 1901 Co. Tipperary

Action Source Surname First Name Year County
 Census Calaghan John 1901 Co. Tipperary
 Census Callaghan John 1901 Co. Tipperary
 Census Callaghan John 1901 Co. Tipperary
 Census Callaghan John 1901 Co. Tipperary
 Census Callaghan John 1901 Co. Tipperary
 Census Callaghan John 1901 Co. Tipperary
 Census Callaghan John 1901 Co. Tipperary
 Census Ocallaghan John 1901 Co. Tipperary