1891 Census: 17 Rosebank Grove, West Leeds, Yorks. RG12/3705/128/15
Mary Foulds/Head/Wid/64/Clipstone, Notts.
Elizabeth Foulds/Dau/S/32/Cloth Weaver/Hollow Meadows, Yorks.
Mary Kitson/Dau/Mar/30/Cloth Weaver/Hollow Meadows, Yorks.
Charlotte Smith Foulds/Dau/S/26/Dressmaker/Leeds, Yorks.
Hannah Foulds/Dau/S/23/Relief Stamper/Leeds, Yorks.
Hilda Sheard/Grandau/5/Leeds, Yorks.
1901 Census: 17 Rosebank Grove, West Leeds, Yorks. RG13/4238/39/25
Mary Foulds/Head/Wid/73/Clipstone, Notts.
Elizabeth Foulds/Dau/S/42/Sheffield, Yorks.
Charlotte Foulds/Dau/S/36/Dressmaker/Worker/Leeds, Yorks.
Hannah Foulds/Dau/S/Relief Stamper Stat.Mf./Worker/Leeds, Yorks.
Deaths:
Robert Foulds - Bet. Jul-Sept. 1870, Age 46. Leeds, 9b page 379
Mary Foulds - Bet. Oct-Dec 1909, Age 82. Leeds, 9b page 235
I can't find a baptism for Mary so yes, the best way of finding her father is to buy the marriage certificate.
Hope this helps.
Jill