Here’s a photo from the front page of the May 18 1929 edition of the Toronto Daily Star:
Normally, a severe attack of pneumonia in a 77-year-old man would be ominous, but it appears that the Hon. Justice Riddell didn’t pass away until 1945. He was the author of The Slave in Upper Canada: History of the Underground Railroad, which dates to 1919 or 1920.
My searching also turned up this photograph of him from 1882.