Doc Coffern Student

Jerome Coffern was chief chemist for the Mammoth concern. He was also considered one of the most learned industrial scientists in the world.

The Mammoth Manufacturing Company paid Jerome Coffern a larger salary than was received by the president of the corporation. It was Jerome Coffern's great brain which gave the Mammoth concern the jump on all its competitors.

[...]

Jerome Coffern halted abruptly, realizing his enthusiasm was getting away with his dignity. He reddened.

"I could not resist the temptation to tell you of this remarkable man," he said proudly. "Doc Savage studied under me many years ago. He quickly learned all I knew. Now his knowledge is vastly beyond mine."

- The Land of Terror (1933) Chapter 1