Kenny Family - Aglish Parish

Hello,

I am trying to learn a bit more about my great grandfather, John Kenny, his life (early years) and reasons for immigrating to Brookline, Mass, USA in mid-1880s.  His baptism record from rootsireland indcate Jan. 2, 1861 as the date of birth/baptism.  His address is listed as Derrywash, Aglish RC parish. 

Additionally, he has a sister, Ellen Kenny with a birth date of September 4, 1867 with same parents (Martin Kenny and Mary Adams) and I can find nothing else on her.  If she passed away in Ireland how might I find that? 

Two of his other sisters, Catherina (nee Kenny) Tonra and Bridget Kenny immigrated to Brookline, Mass.  Bridget died within a year of arriving in 1889. She is buried in Holyhood Cemetery in Brookline, Mass.

There is a fourth sister, Sarah, who stayed in Ireland and took care of the parents as they grew older.  Sarah married a Thomas Garvey in Castlebar in 1907.  I believe he may have been a baker. 

Thanks.  I'm glad to provide additional details if needed.