Thanks again normamac that could well be Margaret in 1851.
I’m pretty sure James Howie was a medical surgeon based on the OPR on SP. When he married in 1806 he is recorded as James Howie, Surgeon, of Kilwinning, on the births of his various children he is recorded as James Howie, Surgeon, James Howie, Physician and Dr James Howie. On the death certificates of his children Jean and Charles, both after 1855, their father’s occupation is given as Physician/Surgeon.
Again pure speculation, but based on what you’ve given me, Margaret McVitie dying in 1928 and Margaret in the 1851 census, it looks like something happened after his wife’s death to break up the family. My G.G. Grand Father, Charles, was working as a labourer in Dundonald in 1841 and it now looks like his sister Margaret is in domestic service in 1851.
The family you mention is the right one with the two Johns, I’m assume the first one died in infancy. I’m not convinced about the John D Howie born 1781 though, this would make him 25 when he married in 1806 and, as at this time he was a surgeon, it seems a little young, I must admit I don’t know how long it took to qualify in 1806 though. The problem I have is that there a lot of Howie’s living in Ayrshire at this time, as I’ve found when chasing a lot of false leads on SP.
Thanks again, your help is greatly appreciated.