Hans Wilhelm Hammerbacher (2 November 1903 – 1980) was a German writer and, in Nazi Germany, a member of the Sturmabteilung.
[2] A physically weak child, he studied social sciences and gained his Ph.D. Having regained his health, in 1928 he bought a house in the mountain resort of Lech (Vorarlberg), Austria, with his father's inheritance.
On 28 February 1934 he joined the SA; since the party was legally banned in Austria, he was imprisoned for five months and then deported to Germany.
He joined the Wehrmacht in mid-1940 and served in Norway, after which he was appointed to the party council in Munich.
He wrote a dozen books promoting a kind of Germanism,[3] in which he proposed that ancient Germanic polytheism had been destroyed by Christian missionaries, particularly Saint Boniface, whose destruction of the Donar Oak was the subject of his Die Donar Eiche: Geschichte eines Heiligtums.