Hi Sean,
Emigrants often declared they were 18 years old at the time. There is a Birth record in Corofin Parish, Galway also referred to as Cummer or KIlmoylan parish.
The townland is Curry. Attaching a copy of Civil Birth Registration record for Bridget born 14th January 1867 to William Feeney & Bridget Clarke.
Note from copy of Church records that the period 1860 to 1872 is not available.
Link to 1901 Census record for William & Bridget Feeney http://www.census.nationalarchives.ie/pages/1901/Galway/Cummer/Curry_Ei…;
Attached copies of Death records for William & Bridget Feeney. William's brother Bryan Feeney was present at both. This appears to indicate that they had no family in Ireland at that time.
I have a lot of research completed on Bryan/Brian/Bernard Feeney and his family. you may contact me at gerlisheen@gmail.com
Regards