What's your theory about the third date on this grave?

Anstey Cemetery, Anstey, Leicestershire
(Click on an image for a larger version)
A very strange cemetery because part of it had been fenced off on health and safety grounds. It was certainly no more dangerous than many sites Claire and I have visited so it is hard to understand the Parish Council's decision.
What is the significance of the three dates for Annie Shelton?
All my new discoveries are published first on the social history group on Facebook so if you want to keep up to date with what is happening you will need to subscribe to the group by clicking on the link below.