4 records — Page 1 of 1
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Creators:
National Museum of American History (U.S.). Division of Transportation
Philadelphia & Reading Railroad Co.
National Museum of American History (U.S.). Division of Engineering and Industry
Dates:
1860-1936
Size:
18 Cubic feet (55 boxes)
Collection ID:
NMAH.AC.0208
Repository:
Archives Center, National Museum of American History

Collection of engineering reports and correspondence from the Engineering Department of the Philadelphia and Reading Railroad Company. The Philadelphia and Reading Railroad was most used for the transportation of anthracite coal within Pennsylvania from 1833 through the early 1970s.

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Creators:
National Museum of American History (U.S.). Division of Electricity and Modern Physics
Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)
Dates:
circa 1847-1989
Size:
36 Cubic feet (124 boxes, 3 map-folders)
Collection ID:
NMAH.AC.0069
Repository:
Archives Center, National Museum of American History

Original documents and papers generated by William J. Hammer and by various companies and individuals with whom he was associated. Includes material related to the research and inventions of Edison, Bell, Tesla, the Curies, etc.

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Creators:
National Museum of American History (U.S.). Division of Mechanical and Civil Engineering
National Museum of American History (U.S.). Division of History of Technology
Modjeski and Masters
Dates:
1870-1979
bulk 1900-1940
Size:
60 Cubic feet (139 boxes)
Collection ID:
NMAH.AC.0976
Repository:
Archives Center, National Museum of American History

The records document the work of consulting engineers and bridge builders, Ralph Modjeski (1861-1940) and Frank Masters (1883-1974) of Harrisburg, Pennsylvania.

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Creators:
Abbott, William Louis, 1860-1936.
Dates:
1887-1923
Size:
1.81 cu. ft. (3 document boxes) (1 half document box) (3 microfilm reels)
Collection ID:
Record Unit 7117
Repository:
Smithsonian Institution Archives

This finding aid was digitized with funds generously provided by the Smithsonian Institution Women's Committee.

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4 records — Page 1 of 1