McAlistertown, Md. [1 reference]

McClurg, James [4 references + 1 “see also” entry]

McComb, Eleazar [1 reference]

McHenry, James [11 references + 1 “see also” entry]

Maclean, Allen [1 reference]

Madison, Dolley Payne Todd [1 reference]

Madison, Frances Taylor [1 reference]

Madison, James, Jr. [2 subentries]

Madison, James, Sr. [9 references]

Madison, Rev. James [9 references + 1 “see also” entry]

Madison, Nelly Conway (Mrs. James, Sr.) [5 references]

Madison, Sarah Catlett [1 reference + 1 “see also” entry]

Madison, Sarah Taite (wife of Rev. J. Madison) [2 references]

Madison, William [2 references]

Madrid [4 references]

Maine [See redirect]

Malden, Mass. [1 reference]

Mann, David [1 reference]

Marblehead, Mass. [1 reference]

Marshall, John [3 references + 1 “see also” entry]

Martin, Benjamin [2 references]

Martinique [1 reference]

Maryland [9 subentries]

Maryland Gazette [2 references]

Mason, George [7 references + 1 “see also” entry]

Mason, Stevens Thomson [7 references + 1 subentry]

Mason Co., Ky. [1 reference]

Massachusetts [10 subentries]

Mathews, Sampson [1 reference]

Maupertuis, Pierre Louis Moreau de [1 reference]

Maury, James [6 references + 1 “see also” entry]

Maury, Walker [3 references]

Maysville, Ky. [1 reference]

Mazzei, Philip (Filippo) [3 references + 1 “see also” entry]

Mediapolis, Iowa [1 reference]

Mercer, Hugh [1 reference]

Mercer, James [1 reference + 1 “see also” entry]

Mercer, John Francis [20 subentries + 1 “see also” entry]

Mercury (ship) [2 references]

Meriwether, Thomas [7 references]

Mexico [1 reference]

Mexico City [1 reference]

Middle Temple, London [1 reference]

Middlesex Co., N.J. [1 reference]

Middlesex Co., Va. [2 references]

Middletown, Conn. [1 reference]

Mifflin, Thomas [6 references]

Military supplies [7 subentries + 1 “see also” entry]

Milligan, James [1 reference]

Millstone River, N.J. [1 reference]

Miro, Don Estavan [3 references]

Mississippi River [9 references]

Mohawk River [3 references]

Money [15 subentries + 1 “see also” entry]

Monmouth Co., N.J. [1 reference]

Monongahela River [1 reference]

Monroe, Eliza [See redirect]

Monroe, James [14 references]

Montcalm de Saint-Véran, Louis Joseph, Marquis de [1 reference]

Montgomery, Joseph [3 references]

Montgomery Co., Va. [2 references]

Monticello (estate) [12 references]

Montmorin Saint Hérem, Armand Marc, Comte de [1 reference]

Montpelier (estate) [14 references]

Moore, Rebecca Catlett Conway [1 reference]

Moore, William [3 references + 1 “see also” entry]

Moravian Town, N.C. [1 reference]

Morgan, Daniel [3 references + 1 “see also” entry]

Morgan, Edmund S. [1 reference]

Morgan, George [1 reference]

Morgann, Maurice [1 reference + 1 “see also” entry]

Morlaix, France [1 reference]

Morris, Robert [15 subentries]

Morrison, John [1 reference]

Mount Vernon Conference [1 reference]

Moylan, Stephen [1 reference]

Murray, William [1 reference + 1 “see also” entry]

Muskingum River, Northwest Territory [2 references]

Musschenbroek, Petrus van [2 references]