Analysis of information sources in references of the Wikipedia article "SS Nisbet Grammer" in English language version.
The vessel went down fifteen minutes after a collision with the Dalwarnic of the Canadian National Railway Line.
The Dalwarnic struck the Grammer on the port side near the stern just forward of the boiler house and engine compartment. A lifeboat from the Nisbet Grammer was deployed as was a yawl from the Dalwarnic in which the crew was able to safely escape from the sinking steamship. Within less than 15 minutes the Nisbet Grammer hull filled with water and sank stern first into the depths of Lake Ontario.
