This seems to be pretty much limited to Day One.
These omissions are so great that the article's factual accuracy has been compromised. Check out the discussion page and revision history for further clues about what needs to be updated in this article.
Rhiannon Davies (née Jones) was the sister of Torchwood member Ianto Jones.
Biography
Rhiannon and her husband lived on the Cromwell council estate with their two children David and Mica. Both children were amongst those briefly taken over by the 456. She had not seen much of Ianto before the 456 event, but they had apparently kept in touch.
She took a mature attitude with him about leaving the family just after their father died, thinking he did not care about them anymore. She also seemed accepting of his relationship with Jack and even comforted him when he told her he was not entirely sure what sort of relationship it was.
She was not aware that her brother worked for Torchwood. She thought he was a civil servant. (TW: Children of Earth: Day One)