The hospital admission record gives her place of birth as Bristol and she was Roman Catholic.
A possibility is this Margaret in 1841 and 1851 with her family. The surname jumps around with many variations similar to McDONNEL, McDANIEL, DONNELL, DANIEL etc.
1841Michael Daniel, 40, Labourer
Bridget Daniel, 40
Mary Daniel, 12
Margaret Daniel, 5
William Daniel, 4 Mo
Michael and Bridget born in Ireland, the children in Gloucestershire
(Piece: 378; Book: 11 Folio: 18 Page number: 31)
1851Bridget Donils, 50
Mary Donils, 21
Margaret Donils, 17
William Donils, 12
Joseph Donils, 3
Bridget is a widow.
(Piece: 1954; Folio: 685; Page number: 29)
Perhaps Margaret couldn't remember or didn't know her father's name and gave her brother instead when she married.
Michael DANIEL and Bridget (Birgitta) MEINAN were married in Bristol 3 July 1836.
I don't know what is going on with Bridget's maiden surname after 1833, I am just the messenger

Baptisms at RC church, Colston Avenue, St Mary-on-the-Quay
Patrick DONNELL born 17 May 1829, parents Michael and Bridget (MEANY)
Maria McDONNELL born 12 Jan 1831, parents Michael and Bridget (MEINAN)
John McDONNELL born 6 August 1833, parents Michael and Bridget (no maiden surname)
Margaret DONNELL born 6 April 1836, parents Michael and Bridget (CONNELL)
Michael DANIEL, born 22 Aug 1838, parents Michael and Bridget (DANIEL)
William DANIEL, born 24 Jan 1841, parents Michael and Bridget (CONNOR)
Michael Joseph McDONEL baptised 23 May 1847, parents Michael and Bridget (no maiden surname)
The last three were were born after civil registration.
MCDANIEL, MICHAEL
Mother's maiden surname: MINEHEN
GRO Reference: 1838 S Quarter in THE CLIFTON UNION Volume 11 Page 281
DANIEL, WILLIAM
Mother's maiden surname: MINNAHAN
GRO Reference: 1841 M Quarter in THE CLIFTON UNION Volume 11 Page 299
MCDANIEL, MICHAEL
Mother's maiden surname: MINAHAN
GRO Reference: 1847 J Quarter in THE CLIFTON UNION Volume 11 Page 282
I don't know, might be worth a look for her siblings?
Debra
