Luke and Grace McSweeney's mother has thanked everyone for their support in the past week.
The brother and sister died in a crash in Clonmel this day last week, and their funeral is taking place today.
Classmates and friends formed a guard of honour, businesses in the town closed their doors as a mark of respect, and President Michael D Higgins was in attendance.
Brigid McSweeney said she and her husband Paul were proud to have Luke and Grace as their children: