I'm doing something similar with the BEARDSHALL family.
I have a Maria GARFORTH born 1792 who married Richard BEARDSHALL 12 Jan 1826 at Wentworth (near Rotherham). She was born in Mirfield.
In 1841 there was a Maria Garforth, aged 9, staying with this family; she was also born in Mirfield, so probably related.
By 1861 Maria Beardshall (nee Garforth) was a widow and living with her son-in-law in Burmantofts.
Cheers,
Rob T