Emile Erlanger & Co. was a French finance and investment company established by German-born, Parisian banker Baron Frederic Emile d'Erlanger and was active during and after the period of Reconstruction following the American Civil War. d'Erlanger was married to Matilde Slidell, the daughter of Louisiana merchant, lawyer and politician John Slidell.
The company was known for its cotton bonds issued to support the Confederacy in 1863. It later had a specialty in channeling French capital into Southern railroads and land development, notably the railroads of the Queen and Crescent Route.
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Emile Erlanger & Co. Wikipedia(Text) CC BY-SA