City of Sharonville issued the following announcement on Jan 16.
It’s time for another Sharonville History Fun Fact! The old Cincinnati Motor Speedway once occupied the entire quadrangle between Mosteller, Kemper, Cincinnati-Dayton and Crescentville Roads.
It was quite large and built entirely of wood. When it was demolished around 1919, several houses in the vicinity were built from the lumber taken from there.
Original source can be found here.