
Source
Columbia ad for patriotic songs, Toronto Daily Star, December 31, 1914. These patriotic songs reflect the optimism of the early years of the war

Source
Columbia Records advertisement for soldiers' songs, including "Our Hearts Go Out to You, Canada", Toronto Daily Star, September 20, 1916
The Dumbell Rag
Hinky Dinky Parlez-Vous (Mademoiselle from Armentières)
Home Sweet Home

Source
A soldier of the 87th battalion playing harmonica for his buddies, Amiens, France, August 1918

Source
The Canadian Motor Machine Gun Brigade making music in an army hut, April 1918
It's a Long, Long Way to Tipperary
K-K-K-Katy
Pack Up Your Troubles in Your Old Kit Bag
Roses of Picardy
Sweet Adeline