Firstly to thank those Chatters who told me of the various books where I might find the info I am after.
Secondly, I seem to have opened a can of worms with Anna Lush Roberts. Thanks to hanes teulu, trish1120 and Rosie 99 for the details they have found for her. I am completely wrong I think about her. I'm afraid I can't give references for my data because it has all been found online from the Censuses and I have not any reference numbers of which ones I found her on.
In 1841 I found a family at West Orchard, Dorset with Anna, 15. Joseph and Ann listed as parents.
I assumed this was a second marriage for Joseph.
In 1851 I have Ann as head, widow born Portsmouth, George, son, 32 born West Orchard and Anna, daughter, 26, glover, born West Orchard.
In 1867 She is in Iwerne married to Thomas E Cole, farmer,50 acres, born Kington Dorset. Anna L Cole, wife, 37, born Wooland, Dorset.
Thanks for all your help, it is much appreciated.
Dot.