What were the names of the two Bronte sisters who didn't survive to adulthood?

Charlotte, Emily, and Anne Bronte are amongst the greats of British literature, with novels such as "Jane Eyre", "Wuthering Heights" and "The Tenant of Wildfell Hall" undisputed parts of the literary canon. Their wayward brother Branwell, too, remains well-known, and was the subject of a book by Daphne du Maurier.

But there were two elder Bronte sisters, neither of whom lived into their teens. Maria (1814-1825) and Elizabeth (1815-1825) were sent to Cowan Bridge school (later fictionalised as Lowood in "Jane Eyre") and soon succumbed to tuberculosis. Maria (called after the children's mother), in particular, seems to have been an unusually gifted and precocious child, and piously resigned to her early death. It is widely accepted that she was the inspiration for the character of Helen Burns in "Jane Eyre".

Although the other sisters did survive into adulthood, all died young, and all of tuberculosis, the damp and smoky conditions around their home at Haworth Parsonage (pictured) not helping.