Harder to find (took me a while), so I will post this too:
His mother Kathleen's obit is under the name Catherine Mitchell. It is in the Star, April 26, 1969 edition, page 88.
She died at her home, 387 Albany Ave on April 25 1969. Wife of the late W H Mitchell. Mother of :(as they are named earlier in this thread, I will use full names here too).
Anne (Mrs Fred Taylor)
William
Helen (Mrs Harry Jeffrey)
Norman
Kathleen (Mrs Palner Slean -- that is what it seems to say

)
Evelyn (Mrs Harry Tracey)
Audrey (Mrs Peter Livie)
Bruce
She had 18 grandchildren, 25 great grandchildren and 1 GG grandchild.
Interment at Westminster Memorial Park
RK