About: Dianna O'Brien

History blogger. Writer. Traveler. Curiosity still drives me. I share what I learn at CoMoHistoricPlaces.com. My newest book, Historic Movie Theaters of Columbia, will be available soon. I have also published a book In 2017, about Charles W. Gehrke, 1917-2009, a Columbia scientist and entrepreneur who founded ABC Labs, now Eurofins.

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