The other niece in the 1861 IOM household of Wm and Eliza Bloor was Ellen Bromley age 16 b LP.

I think I've found her in 1871 age 26 dau dressmaker, with Ellen Bromley head 62 widow stationer, and Martha Bromley dau 28 servant, all b LP.

Edward Bromley married Ellen Hayes in LP in 1838, and I suspect that this baptism below is Ellen's.

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ELLEN HAYES Pedigree
Female

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Event(s):
Birth: 14 DEC 1808

Christening: 19 MAY 1809 St Nicholas, Liverpool, Lancashire, England

Death:
Burial:

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Parents:
Father: JOSEPH HAYES Family
Mother: ELLEN WILLIAMS

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Messages:
Extracted birth or christening record for the locality listed in the record

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So, putting all the bits of evidence together, if Ellen Hayes (mother of Ellen Bromley b 1845, the niece age 16 in 1861) was the sister of Eliza Hayes (wife of William Blore) and also the sister of Charlotte Hayes (mother of Eliza Blore Ford, 6 yr old niece in 1861) whose marriage details (to Henry Ford in 1837) show her father as Joseph Hayes, mariner, then the parents of these 3 Hayes sisters were Joseph Hayes and Ellen Williams (assuming that all 3 had the same mother).

I've just found this census page which ties them together:

1841
Lancashire, Liverpool, Dale St 6/6
Standish St

Henry Ford 25 turner Y
Charlotte 20 Y
John 1 Y
Owen Williams 30 can't read occupation N
Rachel 30 Y
Ellen 2 Y
Jane 3 months Y
Edwd Bromley (indexed Branley) 30 shoe m Y
Ellen 30 Y
Joseph 2 Y
John 2 months Y
Mary Hayes 30 midwife Y
Eliza Hayes 20 Y

Quite an extended family !

Jean C