John McCrae was angesteld as veldchirurg van de Canadeeschn artillerie en was 't hoofd van 't veldhuspitol binst de Twidden Slag vor Yper in 1915. Den dôod van z'n vriend, lutenant Alexis Helmer was den inspiroasje vo 't gedicht ""In Flanders Fields"", da was geschreevn up den derden meie 1915 en was êest uutgegeevn in 't magazine Punch.