I recently came across an item about old stocks sold on eBay. In this particular case it was a certificate from the Huron Gold Mining Company, and it was signed by SP Halls in the role of Secretary. The certificate was dated May 8th, 1900, and must have been one of the last official duties that SP Halls ever performed.
His obituary notes that he left the local school at Easter of 1900, which was April 15th, and that less than a month later had a stroke that left him partially paralyzed, and, at least to the observers of the time, less than fully capable mentally.
You can read a short article about the certificate here.