Family farm

Perhaps this is your Daniel? You didn't give approx year of birth, so I may be off here.  Note the father here is called Owen, which is equivalent to Eugene.

Daniel Aherne

Baptism:20-Nov-1859

Address:Banteer, Co. Cork

Roman Catholic Parish/District: BANTEER

Father:Owen Aherne

Mother:Ellen O Connell

Sponsor 1 Robert Heggarth
Sponsor 2 :Margaret Mullane

From the paid site Roots Ireland, there are also these births to the same couple, Owen Aherne & Ellen O'Connell (Connell):

Margaret 24 May 1861, Banteer, Sponsors - Daniel Mullane & Ann Aherne

Michael 6 Sept 1863, Banteer, Sponsors - Philip Mullane & Mary Mullane

Owen 5 Oct 1865, Banteer, Sponsors - Edmond Murphy & Margaret Aherne

John 27 Jun 1869, Banteer, Sponsors - Jeremiah Lyne & Margaret Mullane

Mary 23 Oct 1870, Banteer, Sponsors - Daniel Mullane & Ellen Mullane

Regards,

Also, there are 1852 Grifffith's Valuation records for Daniel Ahern & Robert Ahern in Banteer, Clonmeen, Cork. As well as a record for Cor O'Connell. 

The Mullane family seen as sponsors above are also in the same record...Daniel and Denis.