Right, just so you know as much as me............
Fanny's (presumed) sister Ellen was born on 25th June, 1854, in Market Street, Tavistock.
Her father was given as John Ansley, Marine Store Dealer, Market Street, Tavistock (informant).
Her mother was given as Susan Ansley, formerly Smith.
I've had a quick look, in the Library, but I couldn't find any record of a John Ansley married to Susan Smith.
I'm gonna need a bigger hammer................!
'Hat.