Hi Andrew,
The Halgh/Haulgh family seemed to die out prior to 1700, the surname just disappeared for what could be a number of reasons...
I have a more promising lead though which has become apparent over the last 24 hours
There was a 'John Walles' fathering children who were baptised at St.Katherines as well, and John's first child was in 1731, (Robert Walles) which would make Johns possible birthdate around the same time as Valentine Walls, and his Brother Robert Walls.
John Walles appears nowhere in Valentine, or Robert's tree
I can only deduce that John Walles is Valentine and Robert's brother !
Let's say that the age at marriage was 18 (for arguments sake), and the first child after marriage was the year after the wedding (again, for arguments sake)
This would make Valentine Walls birth year of 1708.
Robert Walls birth year would be 1709
John 'Walles' birth year would be 1713
All 3 lived in Blackrod, fathering children at the same time, which were all baptised at St.Katherines, in the same period.
The problem is that John 'Walles' fathered 8 children, 7 boys, 1 girl, and in all those parish entries there is no mention of John 'Walles' wife, mother, or father....,the mystery deepens, and if John is Valentine and Robert's brother, we still do not have an origin for any of them !
Here are the children;
Baptism: 25 Dec 1731 St Katharine, Blackrod, Lancashire, England
Robert Walles - Son of John Walles
Register: Baptisms 1727 - 1782, Page 3, Entry 25
Source: LDS Film 2148001
Baptism: 15 Aug 1736 St Katharine, Blackrod, Lancashire, England
James Walles - Son of John Walles
Register: Baptisms 1727 - 1782, Page 7, Entry 21
Source: LDS Film 2148001
Baptism: 16 Jul 1738 St Katharine, Blackrod, Lancashire, England
Thomas Walles - Son of John Walles
Register: Baptisms 1727 - 1782, Page 9, Entry 16
Source: LDS Film 2148001
Baptism: 19 Aug 1739 St Katharine, Blackrod, Lancashire, England
James Walles - Son of John Walles
Register: Baptisms 1727 - 1782, Page 10, Entry 16
Source: LDS Film 2148001
Baptism: 26 Sep 1742 St Katharine, Blackrod, Lancashire, England
Danell Walles - Son of John Walles
Register: Baptisms 1727 - 1782, Page 12, Entry 17
Source: LDS Film 2148001
Baptism: 1 Apr 1744 St Katharine, Blackrod, Lancashire, England
George Walles - Son of John Walles
Register: Baptisms 1727 - 1782, Page 13, Entry 21
Source: LDS Film 2148001
Baptism: 23 Mar 1745/6 St Katharine, Blackrod, Lancashire, England
Jane Walles - Daughter of John Walles
Register: Baptisms 1727 - 1782, Page 15, Entry 11
Source: LDS Film 2148001
Baptism: 10 Jan 1747/8 St Katharine, Blackrod, Lancashire, England
Peter Waeles - Son of John Waeles
Register: Baptisms 1727 - 1782, Page 17, Entry 3
Source: LDS Film 2148001