Her probable birth, the only Margaret in Worcs in 1871:

Surname First name(s) District Vol Page
Births Jun 1871   (>99%)
Chamberlain Margaret King's N. 6c 445

She could not be found in the 1901 census.

But in 1911 she had four daughters with her, had been married 19 years, had 6 children, of which four were living:

Name Relation Condition/ Yrs married Sex Age Birth Year  Occupation  Where Born

NETTLEFOLD, John Sutton Head Married M 44 1867 Director Of Public Comframes  London, Highbury
NETTLEFOLD, Margaret Wife Married 19 years F 40 1871  Birmingham, Edgbaston
NETTLEFOLD, Annie Yale Daughter Single F 16 1895 School  Worcester, Selly Hill
NETTLEFOLD, Beatrice Rosannah Daughter F 11 1900  School  Worcester, Selly Hill
NETTLEFOLD, Lois Daughter F 7 1904 School Worcester Selly Hill
NETTLEFOLD, Valerie Daughter F 1 1910 Warwick Edgbaston
CHAMBERS, Alice Servant Single F 31 1880 Domestic Servant  Warwick, Henley in Arden
KNIGHTS, Ellen Servant Single F 20 1891 Domestic Servant  Stafford, Aldridge
TIMMINS, Gladys Servant Single F 18 1893 Domestic Servant  Worcester. Oldbury
LANGSTON, Frances Servant Single F 36 1875 Domestic Servant  Worcester, Bromsgrove
LANGSTON, Gladys Servant Single F 19 1892 Domestic Servant  Stafford, West Bromwich
BRAGG, Rose Servant Single F 23 1888 Domestic Servant  Warwick, Solihull

RG number: RG14 Piece: 17915
Reference: RG14PN17915 RG78PN1093 RD383 SD3 ED5 SN211

Registration District: Kings Norton Sub District: Edgbaston
EnumerationDistrict: 5 Parish: Edgbaston

Address: Winterbourne Edgbaston Park Road Edgbaston Birmingham
County: Worcestershire
_________________

Their marriage, but only identified as hers from Graeme Walls’ site:

Surname First name(s) District Vol Page
Marriages Sep 1891   (>99%)
Chamberlain Margaret Birmingham 6d 302   
Nettlefold John Sutton Birmingham 6d 302