His older brother Friedrich Schnack (1888–1977) also became a writer, known for his works on natural history and children's literature.
[2] Schack followed his father's official postings around Bavaria, to Dettelbach, Kronach and Hammelburg.
[2] This short work of around 80 pages contains 60 poems based on the sonnet form, on themes of night and death.
His poem "Verdun" was published in 1919 in the first edition of the socialist journal Das Tribunal.
From 1920 to 1925, he was a literary editor and theatre critic for the Neuen Badischen Landes-Zeitung in Mannheim.
He travelled in France, Italy and Dalmatia before returning to Mannheim and then settled in Berchtesgaden.