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Lewis, George W.
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Liberty Engine
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Lilienthal, Otto, 1848-1896
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Lindbergh, Charles A. (Charles Augustus), 1902-1974
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Lusitania (Steamship)
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Martin, Glenn L. (Glenn Luther), 1886-1955
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Mathematical analysis
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Mathematics--Formulae
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McCullough, Robert N.
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Miami Conservancy District (Ohio)
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Michelin prize flight
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Military bases
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Miller, Ivonette Wright, 1896-1995
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Miller, William V.
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Mills, Lois
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Mitchell, William, 1879-1936
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Moedebeck, Hermann W. L. (Hermann Wilhelm Ludwig), 1857-1910
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Montgomery County Historical Society (Ohio)
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Monuments
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Morrow, John
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