Hi Nooshie!
Interesting one this!

Have found her on 1871 Census:-
Thomas Jordan 40 Labourer
Harriet J Jordan (wife) 37 Brothelkeeper
Susan R Jordan (daur) 16 Prostitute
Elizabeth Smithers (lodger) 23 Prostitute
Annie Smithers (lodger) 6
Elizabeth A. Hatton (lodger) 23 Prostitute
Living at Market Street Falmouth
Have you managed to track down the family on any other census?
(This was the only one I managed to find Susan on)
Regs Kim