Louis's books can be found at some of the most important museums in the country

Grover Cleveland Birthplace, Caldwell, New Jersey

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U.S. Grant Cottage National Historic Landmark, Milton, NY

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Smithsonian National Portrait Gallery, Washington, DC

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Smithsonian National Museum of American History, Washington, DC

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Adams National Historical Park, Quincy, Massachusetts

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John F. Kennedy Presidential Library, Boston, Massachusetts

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John F. Kennedy National Historic Site (Birthplace), Brookline, Massachusetts

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Eisenhower Birthplace State Historic Site, Denison, Texas

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Dey Mansion Washington's Headquarters, Wayne, New Jersey

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James A. Garfield National Historic Site, Mentor, Ohio

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Franklin Pierce Homestead State Historic Site, Hillsboro, New Hampshire