Brian has a marriage record for a William Watson Corris to Ann Beatrice Wilmott.
I suspect that Watson should be Wallace.
There is no other William W in the census in the same time frame.
William Wallace was buried age 31 on March 29 1896.
There is a marriage of Annie Beatrice Corris to John James Kinley on November 29 1896.
Annie Kinley is in the 1901 census at 54 Douglas Street in German. Three of her cildren are surnamed Kinley, but there is an 8 year old daughter, Mary Corris, who was born in Peel.
Her birth record could confirm father's name.