Might this have been her birth registration:

Surname First name(s) District Vol Page
Births Jun 1862   (>99%)
HAMILTON Edith Emily Harvey Pancras 1b 165

Her marriage:

Surname First name(s) District Vol Page
Marriages Sep 1890   (>99%)
Bailey Ellen Blackburn 8e 567   
HAMILTON Edith Emily H Blackburn 8e 567   
Hartley Robert Blackburn 8e 567   
KENYON Emmanuel Blackburn 8e 567

But I can’t identify her on the 1891 census.
Howver she is loud and clear in the 1901 census:

Name Relation Condition Sex Age Birth Year Occupation  Disability  Where Born

HARTLEY, Robert Head Married M 46 1855  Produce Merchant  Blackburn,  Lancashire
HARTLEY, Edith Emily Harvey Wife Married F 38 1863  London
HARTLEY, Alice Muriel Daughter F 10 1891  Balderstone, Lancashire
HARTLEY, George Pickup Son M 8 1893  Balderstone, Lancashire
HARTLEY, Lily Majorie Daughter F 7 1894  Balderstone, Lancashire
HARTLEY, Robert Son M 5 1896  Balderstone, Lancashire
HARTLEY, James Harold Son M 3 1898  Balderstone, Lancashire
HARTLEY, Edmund Son M 0 (11 MOS)  1901  Balderstone, Lancashire
HOYLE, Eliza Ann Visitor Single F 47  1854  Balderstone, Lancashire
SHERLIKER, Bertha Frances Nurse Single F 22 1879  Nurse  Preston, Lancashire
JAMES, Ethel Servant Single F 13 1888  Servant  Shrewsbury, Shropshire

RG number: RG13 Piece: 3903 Folio: 62 Page: 6    

Registration District: Blackburn Sub District: Mellor
EnumerationDistrict: 6 Ecclesiastical Parish: Balderstone St Leonards

Civil Parish: Balderston Municipal Borough:
Address: Green House, Balderston County: Lancashire
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In 1911 they were still at Green House, Balderstone.  Another daughter had been added in 1909, Edith Josephine.  And Edith herself said she had had 7 children, all of whom were then living, and that she had been married for 20 years.  However Lily Marjorie, James Harold and Edmund were not listed as at home.
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Her death index:

First name(s) EDITH E H
Last name HARTLEY
Gender Female
Birth year 1860
Age 63
Death quarter 3
Death year 1923
District Chorley
County Lancashire
Volume 8E
Page 423
Country England
Record set England & Wales Deaths 1837-2007
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Her probate index:

HARTLEY Edith Emily Harvey of Crabtree House Brindle Chorley Lancashire widow died 30 August 1923  Probate Lancaster 22 January [1924] to John James Lacey brewer Robert Hartley and Edmund Hartley gentlemen and Alice Muriel Hartley and Lily Marjorie Hartley spinsters.  Effects £1956 10s 8d.

Yjhe last four executors were her children, the first may have been a son-in-law.
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Their marriage:

Surname First name(s) District Vol Page
Marriages Sep 1890   (>99%)
HAMILTON Edith Emily H   Blackburn 8e 567   
Hartley   Robert   Blackburn 8e 567