Google: Lancashire Births Marriages, Death ..... or Lancashire BMD This will give you some information from which you will; be able to obtain a death certificate
A search of the papers may bring up an inquest soon after her death. Likewise there may be a report on her death. Accrington Library may be able to help -
[email protected] If she lived in Clitheroe - alter the address
Whalley Library may have a file on the work done there. I feel it was a place where people were sent for recuperation.
I will send you the address of the secretary of the local history society who may know something about the hospital