Sir Frederick Oscar Warren Loomis (1870–1937) enlisted as a private in the Canadian Militia in 1886 and served there until retiring in 1919. During the First World War he was given command of the Royal Highlanders of Canada

13th Battalion, CEF

The 13th Battalion of the Canadian Expeditionary Force was an active service battalion during the First World War....

 and later led the 3rd Canadian Division

3rd Canadian Division

The 3rd Canadian Division was a formation of the Canadian Corps during the First World War.The 3rd Canadian Division was formed in France in December 1915 under the command of Major-General M.S. Mercer. Its members served in both France and Flanders until Armistice Day...

 during the last two months of the First World War as a major-general.

He is portrayed in a painting in the Canadian Senate Chamber leading the Royal Highlanders of Canada

13th Battalion, CEF

The 13th Battalion of the Canadian Expeditionary Force was an active service battalion during the First World War....

(Canadian Expeditionary Force) into Saint-Nazaire in 1915.

Mount Loomis on the Alberta/BC border is named after him.