Thanks for PM, Richard

This should be Hannah:
1891RG12/3590 18 29
Halifax, Yorkshire
10 Westfield PlaceWilliam Swaine, head, 32, b. Halifax
Blanche R, wife, 25, Solicitor (I suppose this should be in the line above), b. do.
Hannah, dau, 6, b. do.Blanche N, dau, 3, b. do.
Clara Benson, serv, s, 18, General servant domestic, b. York
1901RG13/4121 26 6
Halifax, Yorkshire
19 Akeds Rd William Swaine, head, 42, Solicitor, employer, b. Halifax (as all others)
Blanche R, wife, 36
Hannah, dau, 16Blanche N, dau, 13
Elsie G, dau, 7
Isaac James Parish, boarder, s, 26, Living on own means

As to Julia Edith Green, I think she was Hannah's aunt. There is one Julia Edith Green on the 1901 census for Halifax, age 28 born Halifax, married to a Percy Stanley Green.
Searching the marriage index, I see a marriage Percy Stanley Green - Julia Edith Moore
And searching for a marriage between a William Swaine and a Blanche, there's Jun 1882 Halifax:
William Swaine - Blanche Rhodes Moore