Jessie Drewett or Druett was born 1879 in Harborne, Staffs (later Warwickshire, then part of Birmingham), the daughter of Charles Drewett and Mildred Taverner. She is in the 1881 census as Jessey Drewett age 2, with her parents, and in the 1901 census as Jessie Drewett age 21, living with her married sister Clara and family. In the 1911 census she appears as Jessie Davenport, age 28, living with her married sister Emily and family, along with her own children, including Nora Lambert age 7 born Wall Heath and Marjorie Davenport age 4, born Smethwick.
'Nora' was born 16 Jun 1903 and baptised 28 Jan 1904 at Kingswinford Parish Church as Elenora Rosina Lambert, the daughter of Joseph Benjamin Lambert and Jessie. Her birth was registered in Stourbridge SepQ 1903 as Eleanora Rosina Lambert (mother nee Drewett). Marjorie was registered in Kings Norton DecQ 1906 as Marjorie Vere Lambert (mother nee Drewett).
I don't know whether 'Nora' continued to use the surname Tallantyre before/after Snow's death in 1954, but the GRO Death Index includes a NE Cheshire entry in JunQ 1964 for 'Norah Tallantyre' aged 58 yrs, which I am unable to account for otherwise.
Hope this helps.