In 1861 this might be the sister Elizabeth Farrar that was referred in the settlement exam of Jane Edwards
Livnng at Old Sleaford Lincolnshire
Elizabeth Farrow Widow Female 46 1815 Laundress Egham? Surrey
Harriet Farrow Daughter 16 1845 Laundress Sleaford, Lincolnshire
William Morris Lodger 21 1840 Typer graphical printer Cambridgeshire
Added - In 1851 husband Louis P(arker) Farrow b 1806 Boston Lincolnshire