Katherine Regan O'Grady was from Cashelcolaun, Co Mayo (now Roscommon). Her mother Ellen Gallagher was from 'Palmfield' according to their marriage record. Her father was Michael.
https://family-ogrady.blogspot.com/2021/02/g1-john-regan-and-ellen-gallagher.html
But, there is no townland of Palmfield. There is a 'village' of Palmfield in the nearby townland of Gortanure, however.
Griffiths, 1860s:
So Michael has plots 31, 32, & 33, with a house on plot 32 (Interesting that there's a Thomas Grady in neighboring plot 29).