I am doubting that Mary is the daughter of Honoria Kevil. That Mary is still shown on 1901 census. It might be an error but then why are other married children not shown? Unless they were deceased, I suppose.
Unfortunately, the earlier parish records are transcribed and have few details. Additionally, Ancestry have only indexed by first names.
Here is a marriage for Michael Morrison and Bridget Walsh in February 1852.
https://registers.nli.ie/registers/vtls000632303#page/90/mode/1upThere are baptisms, Thomas, 1857; Margaret 1858; John 1860 all with father Michael, of Ballymote. Sadly, no mother’s name , no Mary and no Godparents.
Not much help really. Maybe concentrate on the Colligans for a while.