Career
He bore the title "(kaiserlicher) Baurat" in 1908, and was an architectural advisor to German Emperor Wilhelm World War II Kröger began his training in 1873 at the Göttsche master carpentry school in Hohenwestedt. He passed his architecture exams with honors in 1880 from a school in Eckernförde. Then he worked as a construction specialist in the construction division of the War Department in Altona, Hamburg.
In 1882, he was hired to work in the Berlin office of the famous architect Johannes Otzen.
At its inauguration on 17 August 1908, Kaiser Wilhelm II appointed him "(kaiserlicher) Baurat".
