Hi Rita,
Looking at Elizabeth's birth record which is available for free on
www.irishgenealogy.ie, it appears that although her father was in India when she was born, she was born at The Glens, Birr, Co Offaly (then King's County).
I had a quick look at the 1911 census (
www.census.nationalarchives.ie) and found a Hillis family living in The Glens at that time who I would think would be her mother's family. All the children were born in different counties so it would appear the family moved around the country a lot, probably for work.
I would recommend you contact or visit the rootsireland centre for County Offaly which may be able to tell you exactly where 'The Glens' was in Birr:
Irish Midlands Ancestry Bury Quay, Tullamore, Co. OffalyTel: +353 (0) 5793 21421. Email:
info@offalyhistory.comBest wishes,
Gillian
Gillian Hunt
Research Officer
Ulster Historical Foundation