Her birth index:

Name:                       Mother's Maiden Surname:
PARK, NORA MARY BEATRIX     RADCLYFFE  
GRO Reference: 1873  D Quarter in KENSINGTON  Volume 01A  Page 176
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Her baptism transcript, by me:

“Page 129
“Baptisms solemnised in the Parish of St Mary, Kensington in the County of Middlesex in the Year 1873
“. . . .
“[Born on] 26th Nov 1873, [On] Dec 27th 1873, No 1028, Nora Mary Beatrix [dau. of] Alexander Waldegrave & Anna Maria Jane Park [of] 9 Collingham Road [profession] Civil Service [was baptized by] W J Du Boulay”
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Their children from the new GRO indices:

Name:                     Mother's Maiden Surname:
LYS, MARJORIE NORA        PARK  
GRO Reference: 1898  D Quarter in WAREHAM  Volume 05A  Page 269

LYS, WILLIAM FREDERICK    PARK  
GRO Reference: 1900  M Quarter in WAREHAM  Volume 05A  Page 272

LYS, KATHLEEN MARY        PARK  
GRO Reference: 1901  S Quarter in WAREHAM  Volume 05A  Page 259

LYS, MARGARET JOAN        PARK  
GRO Reference: 1904  M Quarter in WAREHAM  Volume 05A  Page 285

LYS, FRANCES EVELYN       PARK  
GRO Reference: 1905  M Quarter in WAREHAM  Volume 05A  Page 275

LYS, AUDREY BEATRICE      PARK  
GRO Reference: 1908  S Quarter in WAREHAM  Volume 05A  Page 272
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In 1901 they were at Southbrook, Hamlet, Bere Regis, Wareham, Dorset. Note that their surname was spelled as Lye:

First name(s)  Last name  Relationship  Marital status  Sex  Age  Birth year  Occupation  Birth place
George    Lye         Head      M  M  33  1868  Registered Medical Practitioner M R C S            
                                                                             Bere Regis, Dorset
Nora      Lye         Wife      M  F  27  1874  -                            South Kensington, London
Marjory   Lye         Daughter  -  F   2  1899  -                            Bere Regis, Dorset
William   Lye         Son       -   M   1  1900  -                            Bere Regis, Dorset
Eliza     Sheppard    Servant   S  F  28  1873  Parlour Maid                 Bere Regis, Dorset
Margaret  Millington  Servant   S  F  22  1879  Nurse Domestic               Yeovil, Dorset
Maria     Hawkins     Servant   S  F  22  1879  Cook Domestic                Bere Regis, Dorset
Nellie    Bartlett    Servant   S  F  14  1887  Nursery Maid                 Athelhampton, Dorset

Ref:
Archive reference  RG13
Piece number       1989
Folio              47
Page               18
Combined:          1901 ref: RG13, piece 1989, folio 47, p. 18

No children were missing in 1901.
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In 1911 she and three children were at White Lovington Bere Regis Wareham, Bere Regis, Dorset and they had had six children all of whom were living:

First name(s)  Last name  Relationship  Marital status  Sex  Age  Birth year  Occupation  Birth place
George              Lys     Head      M  M  43  1868  Surgeon  Bere Regis Wareham
Nora Mary Beatrice  Lys      Wife      M  F  37  1874  -        G Collingham Rd Kensington, S W London
Margaret Joan       Lys     Daughter  M  F   7  1904  -        Bere Regis Wareham, Dorset
Frances Evelyn      Lys     Daughter  -  F   6  1905  -        Bere Regis Wareham, Dorset
Audrey Beatrice     Lys     Daughter  -  F   2  1909  -        Bere Regis Wareham, Dorset
Winifred Alice      Burden  -         -  F  25  1886  Servant  Bloxworth Wareham, Dorset

Ref:       1911 ref: RG14PN12326 RG78PN700 RD262 SD4 ED4 SN46
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In the the 1911 census the three elder children were missing:

Marjorie Nora,      b. 1898
William Frederick,  b. 1900
Kathleen Mary       b. 1901

Marjorie was boarding at Dorchester School Prince of Wales Road Dorchester, Dorset.
William was boarding at Portmore House School Rodwell Weymouth, Weymouth, Dorset.
Kathleen did not appear in the index but was in fact at the same school as Marjorie, two line below her.  The reason why she was not in the index is that erroneously she had been given the surname of the line above.  Told ‘em.

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Her death index:

First name(s)  Nora M B
Last name      Lys
Gender         Female
Birth year     1874
Age            56
Death quarter  2
Death year     1930
District       Bournemouth
County         Dorset
Volume         2B
Page           836
Country        England
Record set     England & Wales Deaths 1837-2007
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Her probate index:

LYS Nora mary Beatrice of Bere Regis Dorsetshire (wife of George Lys) died 8 May 1930 at 16 Cavendish-road Bournemouth  Probate Blandford 19 June to William Frederick Lys farm manager and Charles Gdeorge Todd company managing director.  Effects £2995 1s. 9d.

I amagine that W F Lys was her son and C G Todd was her son-in-law.
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Their marriage transcript, by me:

“1891.  Marriage solemnized at Christ Church, Mayfair in the Parish of St George, Hanover Sq in the County of London
“[No] 206 [on] Decwember 9th George Lys aged 30, Bachelor and a surgeon of Bere Regis and Nora mary Beatrix Park aged 24, spinster of 7 Green St, Wallham, London were married.  His father was Thomas Daniel Lys, surgeon; her father was Alexander Waldegrave Park, gentleman.
“Married in the District Parish church according to the Rites and ceremonies of the Established Church after Banns by me D W ???
“The Marriage was solemnised between us [sgned] George Lys  Nora Mary Beatrix Park
“In the presence of us: Atherton Charles Park  Charles ???
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