This is very interesting. There are not many Scraggs in the Edmonton area. My grandfather, Richard Scragg, had a sister, Marie. She was born in in 1885 in Stratford Essex and died in Edmonton in 1979. She would have been too old by your description and I have no idea of how many children if any she had. Father's name Ralph, mothers name Emma.
You can look up the geneology of this family on familyorg.com