Silas Casey, USMA 1826

 

Despite his considerable mathematical talent he graduated near the bottom of his class, 39th of 41. Cullum (vol. 1) says of him: "Casey was a reserved, unassuming gentleman, a gallant soldier, a skilled tactician, and a proficient scholar in the higher mathematics, particularly the application of calculus and quaternions." This is a very curious claim, for quaternions were not created by William Rowan Hamilton until 1843.

 

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