It's good to hear that you are researching your Irish roots. I've done a search of the 1911 Census in Ireland and found a result for an Ellen Holland
of Ballinacurra. She is noted as being 9 years old at the time, which tallies with her being born around 1901. It notes her father as Timothy and her mother as Norah. 8 other siblings are listed on the Census. The result notes that Ellen was able to read and write and her occupation is listed as a "scholar" (or student).
I was also able to find the family's 1901 Census results
. Timothy is listed as the head of the family and he and Norah, at that time, had six children. It seems that Ellen was not yet born at the time of the 1901 Census. Interestingly, her older brother Patrick, aged 26 years in 1911, was not recorded on the 1901 Census, though other siblings alive at the time were.
In 1864 civil registration was introduced in Ireland, which is when we started seeing the formal registration of births, marriages, adoptions, and deaths. These records
have been kept at the General Register Office of Ireland (GRO), through the Irish Genealogy website, to this day and may help you with further research.