Siegen grew up in the Lötschental. He graduated from the teacher training college in Schwyz and created the relief of Blatten in the Lötschental as his diploma thesis. He later used it as a secondary school teacher in Zug in geography lessons.

[1] This article bases on Mair, Toni. Grieder, Susanne. Das Landschaftsrelief – Symbiose von Wissenschaft und Kunsthandwerk. Mit Schweizer Reliefkatalog. Verlag hier+jetzt. Baden, Schweiz. 2006. S.168.