Add this to the list:
http://ww2.ohiohistory.org/etcetera/exhibits/swio/pages/content/1974_tornado.htm
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The tornado superoutbreak of April 3-4, 1974 resulted in 148 tornadoes in 13 states. Across the United States, 315 people were killed, more than 6,000 injured, and 27,000 families suffered property losses. The Xenia Tornado caused the most deaths of any tornado in the outbreak. In Ohio, 12 tornadoes touched down, killing 36 people.
I remember that one from the news, it being my first knowledge of the existence of Xenia, Ohio.
Again from Wikipedia:
Xenia (Greek: ξενία, xenía) is the ancient Greek concept of hospitality, the generosity and courtesy shown to those who are far from home.
Well, I learned that just this moment.
Speaking of which, ( this moment that is, ) we're just now getting T'storms here in Chi-town from the same storm front that spawned that tornado in OK. No red boxes for us, though.