My great grandmother, Little Nan (she was), was an Unwin and travelling up to London it is possible to see the bombed out former church that she was baptised in from the train.
My Unwin and Harris families were from Maldon, Essex and surrounds. As I could not link different strands I created a placeholder, OOM Unwin (One or many).
The PDF will take some time to download – i.e. minutes.
This is a chart, you may have to click on it to expand it and then move around using scroll bars. The Black Dots just show if the person was on the 1881 census, the red whether they are my ancestor.