Checking the 1901 Census Index I found an entry for a Winifred Virtue age 5 entered under Somt S.Mallet.
The BMD record shows that she was born in the March quarter 1896 - is this the correct Winifred?
I have the 1891 Somerset & Dorset FHS Index for Shepton Mallet and would be willing to do further searches for you.
I think that Winifred's parents were either Frank & Bessie or William & Mary Virtue - am I on the right track???