Mr. Hersheimmer, as the son of a prominent millionaire, was a well-known figure in America.
Mr. Hersheimmer's father was the most famous millionaire in the world. 
mnli hypothesis: Mr. Hersheimmer's father was the most famous millionaire in the world.  premise: Mr. Hersheimmer, as the son of a prominent millionaire, was a well-known figure in America.