Kiernan burials

In 1835/1836, three members of my husband's family died.  Their deaths were recorded  in the registers of St. Paul Church of Ireland in Dublin.  Wondering if there is any way of finding where they might be buried.  Deaths are: Margaret Kiernan died 24 Nov 1835;  Richard Kiernan died 1 Jan 1836 (age 11 months) and Richard Kiernan died 16 Jan 1836.

Also, James Kiernan died 3 Jul 1861 after being attacked and beat up in Dublin.  One newspaper article (requesting financial assistance for his widow and children) indicate that the family might were members of St. Nicholas Without Church of Ireland. However we can find no registration of his death nor where he might be buried.

Any help would be appreciated.  Thank you

Peg