![A. J. CASSATT IN 1877](http://upload.wikimedia.org/wikipedia/commons/thumb/3/36/The_History_of_the_Standard_Oil_Company_Vol_1_-_A._J._Cassatt.png/250px-The_History_of_the_Standard_Oil_Company_Vol_1_-_A._J._Cassatt.png)
A. J. CASSATT IN 1877
Third vice-president of the Pennsylvania Railroad in charge of transportation when first contract was made by that road with the Standard Oil Company.
![GENERAL GEORGE B. MCCLELLAN](http://upload.wikimedia.org/wikipedia/commons/thumb/a/ab/The_History_of_the_Standard_Oil_Company_Vol_1_-_General_George_B._McClellan.png/250px-The_History_of_the_Standard_Oil_Company_Vol_1_-_General_George_B._McClellan.png)
GENERAL GEORGE B. MCCLELLAN
President of the Atlantic and Great Western Railroad at the time of the South Improvement Company. General McClellan did not sign the contract.
![GENERAL JAMES H. DEVEREUX](http://upload.wikimedia.org/wikipedia/commons/thumb/1/1d/The_History_of_the_Standard_Oil_Company_Vol_1_-_General_James_H._Devereux.png/250px-The_History_of_the_Standard_Oil_Company_Vol_1_-_General_James_H._Devereux.png)
GENERAL JAMES H. DEVEREUX
Who in 1868 as vice-president of the Lake Shore and Michigan Southern Railroad first granted rebates to Mr. Rockefeller's firm.
![JOSEPH D. POTTS](http://upload.wikimedia.org/wikipedia/commons/thumb/2/25/The_History_of_the_Standard_Oil_Company_Vol_1_-_Joseph_D._Potts.png/250px-The_History_of_the_Standard_Oil_Company_Vol_1_-_Joseph_D._Potts.png)
JOSEPH D. POTTS
President of the Empire Transportation Company. Leader in the struggle between the Pennsylvania Railroad and the Standard Oil Company in 1877.