if they were labourers, herdsmen etc, they might not be on Griffith as they wouldn't be renting land -
many of my family aren't on Griffith, and couldn't afford gravestones, though I found their baptisms and marriages in the parish records
- this may be the route you'll have to go down .. it'll be easier when the Wexford records come online .. I'm not sure what R.C. parish Boolavogue is in?
regards eadaoin