Well, let me add another generation to your tree. Here is the baptism of Mary Holdbrook in 1814.
[Later preferred spelling appears to have been Holbrook/Hollbrook]
Name: Mary Holdbrook Date of Birth:
Date of Baptism: 26-Jan-1814
Parish/District: Wexford
County Co. Wexford
Denomination: Roman Catholic
Father: John Holdbrook
Mother: Ellen Newport
Sponsor 1 /Informant 1: Richard O'Connor
Sponsor 2 /Informant 2: Amelia Jeffries
John and Ellen had at least three other children
Anne, 13/2/1807
John 1/9/1809
? 15/11/1811
As I mentioned previously, the Holbrooks were hairdressers in Wexford for many generations. You can see later ones in the 1901 and 1911 census. On two of the baptisms, the mother's name is given as Eleanor.