Background
Source: Wikipedia
Dr. Walter Rosenhain ForMemRS (24 August 1875 – 17 March 1934) was a German-born Australian metallurgist. Rosenhain was born on 24 August 1875 in Berlin, German Empire, the son of Moritz Rosenhain, a merchant, and his wife Friederike, a daughter of Rabbi Benjamin Yosman Fink. The family emigrated to Australia when Walter was five years old, to avoid him having to do military service.
