Hi Marshall,
The printing works in Oxford Passage was I believe started and run by Thomas Willey who was a Chartist of some renown.
After Willey's death it was run by Thomas HAILING who was the older brother of my great grandmother Unity Hailing. Thomas was born c 1831. Thomas was his nephew.
I'm not sure whether you are still around as this posting is some months old but if you are I would be happy to share whatever I have. With which line of Hailings are you connected?
Joan