Subjects
- Metallurgical industry.1
- Metalwork.1
- Mexican War, 1846-1848.1
- Military discipline. 1
- Mines.1
- Mining.1
- Money.1
- Mother and child.1
- Mountain railroads.1
- Murder--California--San Francisco--History--19th century.1
- Murder--New York--New York--History--19th century.1
- Naval yards & naval stations.1
- Offices.1
- Ordnance industry.1
- Painters--19th century.1
- Paper industry.1
- Parents-in-law.1
- Patent suits--United States.1
- People associated with manual labor.1
- Petroluem industry.1