Dear Judith,
Sorry for the delay - I believe you are correct! Thank you!

I came to the same conclusion after signing up for Ancestry DNA and getting a match! :-)

I now have the marriage record for Ethel and the 1921 census return which includes her parents and a brother.

It also indicates that Harry emigrated in 1876 and Mary in 1895???

Also I thought I had found harry and Mary in Torquay in 1911 but i think that could be a very similar couple ( with different children whose dates of birth would accommodate a sister in 1895 and a brother in 1903...)

I think the nest step is 1911 Ontario. Oh, and another photo! ( next post if i can do it)
Kind regards,
Sue