Laurina
I was looking into a topic posted on the Northamptonshire lookups - for Tomlin of Wellingborough. On 1851 census a William Tomlin b 1811 Wellingborough, a Tailor, is lodger with a family of Newberrys in Hitchin Hill, Hitchin Herts. These are :-
Sarah Newberry, Head b 1816 Hitchin
Mary Newberry, Sister b 1826 Hitchin
both Unmarried - & I guess are the daughters of Thomas Newberry & Mary Oakley
In this family are daughter Maria Newberry age 10 , son John Newberry age 43 & son George Newberry age 1. Looking at the IGI found Maria & John listed with second name Tomlin, & mother as Sarah Newberry. So are these the children of William Tomlin & Sarah Newberry ?
Living next door in Hitchin Hill is James Newberry b 1831 in Holwell, a Bricklayers Labourer, wife Martha, & son George.
I am assuming these 2 households are related & thus James is also son of Thomas & Mary.
So is there another James son of Joseph, who by chance also married a Martha ; or is the same person that you are looking for

regards John