Looking for Costello(e) & Ryan relatives

I'm looking for information on descendants of William Costelloe & Catherine (Kitty) Ryan. Believe many of their children were either baptised or married at Doon Church or Castletown Church.

Per the Irish census of 1901 and 1911, some of the family may have still lived in or near Glengar.  

Possible children of William Costelloe and Catherine (Kitty) Ryan:
Surname First Name Birth Yr County
Costelloe Mary 1845 Co. Tipperary
Costolloe William 1848 Co. Tipperary
Costelloe Patrick 1850 Co. Tipperary
Costolo John 1853 Co. Tipperary
Costello Thomas 1855 Co. Tipperary
Costolloe Mary 1855 Co. Tipperary
Costelloe Michael 1857 Co. Tipperary
Costello Edward 1859 Co. Tipperary
Costelloe Catherine 1863 Co. Tipperary

Any information on the wherabouts of descendants of this family would be appreciated...thx!