Search for Greaney Family

My grandfather-John P Greaney-born Holyoke Ma 1891

His father Patrick Greaney born Ireland abt 1861: his mother Ellen Halloran born Ireland abt 1865. Patrick had a sister born in Ma in 1888, so they immigrated prior to then.

I have found Patrick's Father to be named Jeremiah Greaney, and his mother was Margaret(maybe Duggan? unsure).

On LDS site I found documentation showing Jeremiah's father as Patrick Greaney and his mother as Nora Mara-birth of Jeremiah as 10 Nov 1821 and his sister Margaret 7 Sep 1823-both in Kilcummin.

However, when I went to another Ireland site with parish info, Margaret was there but Jeremiah's info was listed as the name Dermot Greanet, so now I am unsure.

Any info regarding anyone above, birth, death, marriage, will be greatly appreciated.

Thank you in advance

Barbara Thompson