6. Sidney Weinberg

Sidney James Weinberg was termed as a long-time leader of the Wall Street firm Goldman Sachs. He was also nicknamed ‘Mr. Wall Street’ by The New York Times.

His father was a wholesale liquor dealer and Weinberg was one of the eleven children in the family. He never got further than junior high school, in which to be noted, he left at the age of 13.

He joined Goldman Sachs at the age of 16, as a janitor's assistant with an earning of $3 per week. Strangely his job responsibilities there included brushing the firm’s partners’ hats and wiping the mud from their overshoes. Paul Sachs, grandson of Goldman Sachs, liked Weinberg and sent him to the Brooklyn's Browne's Business College.

He later became a Goldman Sachs partner in 1927. Sidney Weinberg was eventually given a seat at the NYSE by Goldman Sachs.