Hans Krüger (29 May 1898 in Lübeck – 27 March 1988 in Niefern-Öschelbronn) was a pharmacist, anthroposophist, botanist, lecturer and researcher.
Her father moved from Silesia to Lübeck as a young pharmacist and established a studio as a photographer, a new art at that time.
He attended a small anthroposophical group of theology students that year and heard Rudolf Steiner lecture in Stuttgart.
In Berlin he involved himself in the Independent Anthroposophical Society and took part in performing the Oberufer Christmas plays.
He continued his studies in pharmacy from 1924 at the same time working part-time at the pharmaceutical laboratories of the Institute of Clinical Medicine.
[2] On suggestion of Rudolf Steiner he worked with Ehrenfried Pfeiffer and Dr. Alla Selawry to develop the method of sensitive copper chloride crystallization to study the quality of substance and life.