John Ainsworth Horrocks, English-Australian explorer (b. 1818)
John Ainsworth Horrocks (22 March 1818 – 23 September 1846) was an English pastoralist and explorer who was one of the first European settlers in the Clare Valley of South Australia where, in 1840, he established the village of Penwortham.

1846Sep, 23
John Ainsworth Horrocks
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Events on 1846
- 11May
Mexican-American War
President James K. Polk asked for a Declaration of War against Mexico, starting the Mexican-American War. It is approved on May 13. - 7Jul
Conquest of California
American troops occupy Monterey and Yerba Buena, thus beginning the conquest of California. - 10Sep
Sewing machine
Elias Howe is granted a patent for the sewing machine. - 23Sep
John Couch Adams
Astronomers Urbain Jean Joseph Le Verrier, John Couch Adams and Johann Gottfried Galle collaborate on the discovery of Neptune. - 24Sep
Zachary Taylor
Mexican-American War: General Zachary Taylor captures Monterrey.