Statistics for occurrence #1 of “Colonel Bomford” in entry cannon of Harper's Encyclopedia of United States History:
...cast in 1775.
The heaviest guns used at this time were 18-pounders.
William Denning makes wrought-iron cannon of staves bound together with wrought-iron bands, and boxed and breeched, 1790.
Colonel Bomford , of the United States ordnance department, invents a cannon called the columbiad, a long-chambered piece for projecting solid shot and shell with a heavy charge of powder, 1812.
West Point foundr...
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† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.