I noticed that there was an Emma Franklin in the same household in 1871 also born in Grimston Kent (a married sister perhaps?). In 1881 her birthplace is recorded as just Kent and in 1891 as Springhead Kent. She had died by 1901.
However, Springhead seems to be an area in/near Northfleet, just off the A2, so it is still in the right neck of the woods.
Dimps
Next Day: I happened to go to Bluewater today (groan), so took the opportunity to look at Springhead. Well, it's one of those weird urban fringe areas (apologies to anyone who lives there): a mixture of grubby-looking countryside, chalk/cement quarries, industry and dollops of housing(mainly 1930s) here and there. I couldn't stop because of the confusion of diversions (lots of re-planning going on), huge lorries bearing down on me, etc. There was a big cemetery in Springhead Road, which might be useful if you can find someone who lives closer than me.
Green Street Green is about 5km away.