Tadmor is an extinct town in Montgomery County, in the U.S. state of Ohio. Its location, , is now within the Vandalia city limits."Tipp City Quadrangle, Ohio-Miami County," 7.5 minute series (topographic), n.d.
History A post office called Tadmer was established in 1867, the name was changed to Tadmor in 1884, and the post office closed in 1917. Besides the post office, Tadmor had a station on the Dayton and Michigan Railroad.
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