Hi
I don't think the census that you've found is the right one! It's been strangely mis-transcribed. The image shows:
36 Lascelles Road
Michael Rosenberg Head 24 Tailor Grodney, Russia
Scilley Rosenberg Wife 25 Grodney, Russia
Separate household:
38 Lascelles Road
Morris Levi Father 21 Shoemaker Grodney, Russia
Katie Levi Mother 22 Malava, Poland
Sarah LEVI Daughter 11mths Leeds, England
The others are all Middletons in a separate household.
Sarah would have been about 2-3, and Lily would have been about 1 year.
But you're right about the Rosenxxxx link; in the 1901 census the Sadoskis (sic) are sharing a property with a brother-in-law Ben Rosenborn, sister-in-law Helen and their daughter Rebecca under 1 mth.
RG13 3533 107 29
Kind regards
Gaie