Family Tree Leaves

So far, with DNA on Ancestry, I haven't come across anyone who seems to match on my distant LAWRENCE line ie especially that links back further than James LAWRENCE born c1807 in Buntingford, Hertfordshire and his wife, Susan WRIGHT, born c1810 in Silver Hill, Hertfordshire. For both of them, the places of birth are as per the 1851 Census but thay might not be right! Susan doesn't appear with her family any more after that; in fact, I believe she ended up in Friern Barnet Lunatic Asylum but that is for another post! With James, on the 1861 Census, he gives his place of birth as Silver Hill, N.K. (which I assume means unknown?) and then he dies in 1864, so there are no more census entries to help me out! However, with James, the ages given on the Census and at his death all stay consistent with him being born c1807. The problem with the general area that James might come from is that it's close to the Essex border, so it's possible he was baptised in either Hertfordshire ...

Joseph CASS is my Great, Great, Great Grandfather. When I first found out about him, it was because he was listed as the father of my Great, Great Grandmother, Jane CASS, when she was baptised at the church of All Saints in Little Canfield, Essex on 25th December 1836. Her mother is given as Eliza and Joseph's occupation was Labourer. I then found the three of them on the 1841 Census living in the Parish of Stanstead in Hertfordshire with both Joseph and Eliza listed as being 28 years old and Jane as 4 years old. Joseph is still listed as being a Labourer. The reference for this Census record is HO 107 P434 B12 F8 Pg10. Since the 1841 Census is the one where people were asked to round their ages to the nearest five if older than 15, at this point I would hazard that both Joseph and Eliza were actually 28 in 1841 which gives an approximate year of birth for both of them as 1813. For all three, there is an 'N' for born in the County so they weren't born in Hertfordshire....