Hi
both all,
Sorry it I'm making things even more confusing.
I see your family are in the Aston district of Birmingham in 1911, therefore I wondered whether you had ruled out this birth:
Doris M Smith mother's maiden name Guise
Jun 1913 Aston 6d 745
If her birth day was in March then she could well have been registered in the quarter covering April=> June
I'm mentioning this because there's a birth
Eliza Helen Guise, Jun 1871, Stratford Upon Avon 6d 545
She appears as Ellen E Guise on the 1881 census (daughter of Joseph and Jane, I believe. The enumerator got himself in a mess)
Long shot, really, because I then completely lose her
(There's a possible marriage in Stratford in Dec 1891 for an Ellen Guise, to either Thomas Alfred Court or Thomas Timms. Unfortunately I can't find out which she married, or find her in 1901, or find a marriage to Ernest Smith)