Thelma and Mikey lost their lives in the incident last Friday evening.
The two children who lost their lives in the car fire in Westmeath will be laid to rest on Thursday.
The funeral arrangements for two year old Michael and five year old Thelma Dennany have been confirmed this morning.
The children will repose at Glennon's Funeral Home on the Ballinalee Road in Longford Town (N39 EC81) tomorrow evening, Wednesday, from 4 to 8 o'clock.
A Mass of the Angels will take place in St. Mel's Cathedral in Longford at 11 o'clock on Thursday morning, followed by burial in Cullyfad Cemetery.
The children are survived by their father Michael, mother Lynn, sister Katelyn, brother Eddie, grandmother Mary, grandfather Herbert, aunts, uncles, relatives and friends.
They're pre-deceased by their grandfather Austin Dennany and their grandmother Thelma Egar.
The family has requested that their home remains private, with family flowers only please.
Donations, if desired, can be made to St.Christopher’s Services, Longford, c/o Glennon Funeral Directors, or any family member.