Pinkerton National Detective Agency
From Wikipedia, the free encyclopedia.

The Pinkerton National Detective Agency was founded in 1850 by Allan Pinkerton (1819-1884), an immigrant to the U.S. from Scotland.

Pinkerton is now a brand name for security guard services provided by Securitas.

The original article can be found at: http://en.wikipedia.org/wiki/Pinkerton_National_Detective_Agency.
All text is available under the terms of the GNU Free Documentation License.