I found you GG grandmothers obit in The Brooklyn Eagle Apr 12, 1897 on Page:7.
https://www.newspapers.com/image/50439997/ I see from your post that you already have this information but in it a mention of Native of Monasterevin, County Kildare, Ireland.
I located her death Certificate at the following link:
Question 2 Age: Answer 65 Years 10 months 21 days
Question 8 If of foreign birth how long in the US Answer 50 years
Question 9 How long a resident of the city? Answer 10 years.
So, with the above information her birth would be May 23, 1831
Immigration year 1847
Resident of the City since 1887
Monasterevin is a Catholic Parish in Co. Kildare, on Roots Ireland https://www.rootsireland.ie/
It has a list of births for this parish:
8 matches for the search criteria: Corrigan (plus variants) 1821-1841 Parish: MONASTEREVIN (RC)
There is no listing for Elizabeth or Bridget Corrigan in their records. I also accessed the parish NLI records to see if some damage may have occurred to the record or perhaps some missing pages, but everything appears to be OK. A link to the record at NLI