Standard Chemical Company
Inscription
Founded here by brothers J.J. and Joseph Flannery in 1913, it was the first commercial producer of radium in the US. Radium production was the earliest nuclear industry. Discoverer Marie Curie visited the laboratory in 1921 and was presented with 1 gram of the element for research.
Location
Sources
More markers in Allegheny
Frank Conrad (1874-1941)
Wilkinsburg, PA
At his garage workshop here in 1919-1920, Conrad made broadcasts over his amateur station, 8XK, which introduced the concept of...
Homestead Grays
Homestead, PA
Legendary baseball team that dominated the Negro Baseball Leagues during the first half of the 20th century.
Simon Girty (1741-1818)
Pittsburgh, PA
Born near Harrisburg, Girty crossed cultural boundaries between native and white societies.
National Tube Works
McKeesport, PA
Incorporated 1869, the works began production here, 1872.
Union Local 471, American Federation of Musicians
Pittsburgh, PA
Organized in 1908, this local was one of the first African American musicians unions in Pennsylvania.