Galena-Signal Oil Company
Founded 1865. Under the leadership of Charles Miller & Joseph Sibley, it produced high - quality lubricants used by most U.S. railroads. Purchased 1878 by John D. Rockefeller's Standard Oil, which used Galena-Signal products to gain dominance over area railroads and a virtual monopoly of the U.S. oil industry. Independent after the breakup of Standard Oil in 1911. Absorbed 1931 by Valvoline. Headquarters located here, 1901-1931.
David Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesBarry Lawrence Ruderman Map Collection, Stanford LibrariesBarry Lawrence Ruderman Map Collection, Stanford LibrariesBarry Lawrence Ruderman Map Collection, Stanford Libraries
Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov
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