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Private company

Merchants and Miners Transportation Company

Major Passengers and Shipping Company

Merchants and Miners Transportation Company, often called M&M and Queen of Sea, was a major cargo and passenger shipping company founded in 1852 in Baltimore, Maryland. In 1852 is started with routes from Baltimore and Boston two wooden side wheelers ships.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

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1911 SS Suwannee
Photo: Merchants & Miners Line (Life time: 1912), Public domain, via Wikimedia Commons3

Merchants and Miners Transportation Company, often called M&M and Queen of Sea, was a major cargo and passenger shipping company founded in 1852 in Baltimore, Maryland. In 1852 is started with routes from Baltimore and Boston two wooden side wheelers ships.2

Sources

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