Battle in the Air
Bing! Bang! Bing 'em on the Rhine
Chimes of Normandy
Lorraine, My Beautiful Alsace Lorraine
Ma Normandie
My Belgian Rose
Over Yonder Where the Lilies Grow
Somewhere in France
Somewhere in France with You
Three Cheers for Little Belgium (from Business as Usual)
Up in the Air, Over There
We Don't Want the Bacon, What We Want Is a Piece of the Rhine
We Stopped Them at the Marne
When Alexander Takes His Ragtime Band to France
When It's Night Time Down in Burgundy
When Yankee Doodle Learns to Parlez-Vous Français
You Keep Sending 'em Over and We'll Keep Knocking 'em Down

Source
Pathé Records advertisement for songs about the war, and other recordings, Toronto Daily Star, February 15, 1918, p. 8

Source
Canadian nurses during the First World War