The tradition of Red Poppies on Memorial Day goes back to World War I when Canandian soldier, John McCrae wrote the poem In Flanders Field. Moina Michael, an American woman, wrote these lines in reply:
We cherish too, the Poppy red
That grows on fields where valor led,
It seems to signal to the skies
That blood of heroes never dies
The custom of wearing a red poppy on Memorial Day evolved.