Weiss was born to a well-to-do
Protestant family in
Karlsruhe, Germany. Weiss followed his father's steps and received education in plumbing and heating installation. He was an apprentice in his father's shop. From 1923–1927 Weiss lived in South America, helping his brother to establish a farm. After his father's death in 1928, Weiss took over the family business. Two years later he got married. Weiss and his wife had three children. He was not particularly interested in politics and joined Reiter SS, a branch of
Schutzstaffel (SS) that focused on horsemanship and
equestrianism, in 1934. In 1937, he also joined the
National Socialist German Workers Party. When Nazi Germany
invaded Poland in September 1939, he was
drafted into the
Wehrmacht. Because of his SS membership, he was placed in a
Waffen-SS mechanical supply unit, with which he took part in the
Battle of France. In August 1940, he returned to his hometown and resumed the family business. == The Holocaust ==