Thanks Barbara, That made me do some more research.
This most likely is son John, as I have a baptism of a Unice on 26 July 1824 also a child of John & Susannah Allen, Bricklayer.
The Bridget Peters b 1831 I have found on 1851 being niece of James Lucas & Bridget (ne Allen) age 59, plus nephew George Allen age 30. On 1841 James & Bridget Lucas are in Brampton together with George Allen & James Peters & Amos Peters.
On 1851 this Amos Peters is with Susannah Allen being her nephew.
The Bridget Allen (wife of James Lucas) has a christening on 22 July 1792 at Brampton, daughter of Matthew & Bridget Allen, labourer
Regards John