In a letter dated 2 March 1852, Mrs Gaskell wrote, “The old red camellia has seven flowers all out on it. Meta’s that AA gave her, has two-varigated single.” (Meta was Mrs Gaskell’s daughter. I don’t know who AA was.)
The two camellias in the present garden were in flower at the end of March when I took photos of them. They are still in flower now. The name of the variety is Comtessa Lavinia Maggi.