Statistics for occurrence #1 of “Gatling” in entry cannon of Harper's Encyclopedia of United States History:
...n Company, 1860. Parrott gun first put to test of active warfare in the battle of Bull Run, July 21, 1861. Gatling rapid-firing gun, from five to ten barrels around one common axis; tenbarrel Gatling discharges 1,200 shots a minute; range, 3,000 yds.; invented in 1861. S. B. Dean, of South Boston Iron Company, patents a process of rough boring bronze guns and forcibly expanding the bore to it...
|Max. Freq.||Min. Freq.|
|†||Richard Jordan Gatling||13||10||1||0||0 user votes|
|Gatling||8||0||0||0||0 user votes|
|Riddick Gatling||3||0||1||0||0 user votes|
|Jonathan Gatling||2||0||0||0||0 user votes|
|John Gatling||1||0||1||0||0 user votes|
† 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.