Thanks Andrea and all,
I think we are cracking this. Its hard doing this long distance but I think Frances and Isaac Rose are coming slowly out of the woodwork.
The 36yr old Francis Rose you mention buried at St Nicolas cheapside would have to have been bap. at Burwash in 1805 so her year of death would be around 1840. If she was a few months to a year old at the time of her baptism this is the 1840 death on BMD, it seems about right doesnt it?
So she is likely to be John and Mary (nee Woodsell) daughter from Burwash and I can with the evidence accept her as the grand daughter of my 3x great grandfather.
Isaacs parents are given as Sarah and James Rose in the 1851 Brighton census as they are named as grandparents to the 18yr old Esther Rose I cant access the image but we might expect them to come from Tonbridge then? The Sands family had links with Tonbridge and the Maidenhead areas and I can see how the couple may have met.
Henry Rose - Esthers brother did die in 1837 but he was baptised in 1831 at St Nicolas which makes him 6. If he was 11 that birth year is 1826, 2 yrs. before his parents marriage. The Fanny child who died just before 1840 is probably an infant of the couple also.
So the address was Wood Street in Brighton around 1833
Isaac married Mary Compor at Steyning in 1853 and ultimately settled in Hastings. Esther Rose went on to marry William Wright back at Steyning in 1858 and our way forward is then clear..
I'll now chase down the Rose family. So very many thanks...so no bigamists then!! M.Ann