| 651 |
Martin, Samuel. 1801-1820. New York City. clockmaker or watchmaker -- |
| 652 |
Martin, Thomas. 1764-1764. Baltimore, Md.. clockmaker or watchmaker -- |
| 653 |
Martz, Daniel. 1818-1818. Frederick Co., Md.. clockmaker or watchmaker -- |
| 654 |
Mason, Samuel. 1820-1820. Philadelphia, Pa.. clockmaker or watchmaker -- |
| 655 |
Massey, Edward. 1799-1799. New York City. clockmaker or watchmaker -- |
| 656 |
Massot, Horace. 1806-1822. Charleston, S.C.. clockmaker or watchmaker -- |
| 657 |
Masters, John. 1820-1820. Boston, Mass.. clockmaker or watchmaker -- |
| 658 |
Mather, John. 1797-1798. Baltimore, Md.. clockmaker or watchmaker -- |
| 659 |
Mathey, Augustus. 1819-1819. Cincinnati, Ohio. clockmaker or watchmaker -- |
| 660 |
Mathey, Augustus. 1820-1820. Louisville, Ky.. clockmaker or watchmaker -- |
| 661 |
Mathey, Lewis. 1797-1801. Philadelphia, Pa.. clockmaker or watchmaker -- |
| 662 |
Mathey, Lewis. 1806-1806. New Orleans, La.. clockmaker or watchmaker -- |
| 663 |
Matlack, William. 1785-1797. Charleston, S.C.. clockmaker or watchmaker -- |
| 664 |
Matlack, William. 1797-1797. Philadelphia, Pa.. clockmaker or watchmaker -- |
| 665 |
Matthews, David. 1817-1817. New York City. clockmaker or watchmaker -- |
| 666 |
Matthews,. 1756-1756. Orange Co., Va.. clockmaker or watchmaker -- |
| 667 |
Maus, Frederick. 1785-1793. Philadelphia, Pa.. clockmaker or watchmaker -- |
| 668 |
Maxwell, A.. 1805-1811. Philadelphia, Pa.. clockmaker or watchmaker -- |
| 669 |
McCabe & Walker. 1805-1806. Richmond, Va.. clockmaker or watchmaker -- |
| 670 |
McCabe, William. 1804-1820. Richmond, Va.. clockmaker or watchmaker -- |
| 671 |
McCay & Cowan. 1805-1807. Richmond, Va.. clockmaker or watchmaker -- |
| 672 |
McChesney, Nathaniel. 1809-1809. New York City. clockmaker or watchmaker -- |
| 673 |
McClure, David. 1810-1810. Boston, Mass.. clockmaker or watchmaker -- |
| 674 |
McCraw, Donald. 1767-1767. Annapolis, Md.. clockmaker or watchmaker -- |
| 675 |
McDonald, Charles. 1812-1818. Lexington, Ky.. clockmaker or watchmaker -- |
| 676 |
McDowell, James. 1791-1808. Philadelphia, Pa.. clockmaker or watchmaker -- |
| 677 |
McDowell, John. 1817-1817. Philadelphia, Pa.. clockmaker or watchmaker -- |
| 678 |
McDowell, William H.. 1817-1820. Philadelphia, Pa.. clockmaker or watchmaker -- |
| 679 |
McElwee, James. 1813-1814. Philadelphia, Pa.. clockmaker or watchmaker -- |
| 680 |
McFarlane, George. 1822-1822. Middlesex Co., Va.. clockmaker or watchmaker -- |
| 681 |
McFarlane, John. 1796-1813. Boston, Mass.. clockmaker or watchmaker -- |
| 682 |
McFarlane, William. 1805-1805. Philadelphia, Pa.. clockmaker or watchmaker -- |
| 683 |
McGinn,. 1819-1819. Charleston, S.C.. clockmaker or watchmaker -- |
| 684 |
McHarg, Alexander. 1815-1820. Albany, N.Y.. clockmaker or watchmaker -- |
| 685 |
McHinch, Robert. 1799-1804. New York City. clockmaker or watchmaker -- |
| 686 |
McIlhenney, Joseph E.. 1818-1820. Philadelphia, Pa.. clockmaker or watchmaker -- |
| 687 |
McIver, Colin. 1783-1788. Alexandria, Va.. clockmaker or watchmaker -- |
| 688 |
McKenzie, Alexander. 1795-1798. New York City. clockmaker or watchmaker -- |
| 689 |
McKitrick, Thomas. 1801-1812. New York City. clockmaker or watchmaker -- |
| 690 |
McMahon, T.. 1812-1812. New York City. clockmaker or watchmaker -- |
| 691 |
McMyers, John. 1799-1799. Baltimore, Md.. clockmaker or watchmaker -- |
| 692 |
McNeish, John. 1812-1820. New York City. clockmaker or watchmaker -- |
| 693 |
Meeks, Edward. 1794-1798. New York City. clockmaker or watchmaker -- |
| 694 |
Melville, Henry. 1798-1798. Wilmington, N.C.. clockmaker or watchmaker -- |
| 695 |
Mendenhall, James. 1811-1811. Guilford Co., N.C.. clockmaker or watchmaker -- |
| 696 |
Mends, Benjamin. 1796-1797. Philadelphia, Pa.. clockmaker or watchmaker -- |
| 697 |
Mends, James. 1795-1795. Philadelphia, Pa.. clockmaker or watchmaker -- |
| 698 |
Menzies, John. 1804-1820. Philadelphia, Pa.. clockmaker or watchmaker -- |
| 699 |
Merry, F.. 1799-1800. Philadelphia, Pa.. clockmaker or watchmaker -- |
| 700 |
Miller, George. 1795-1796. Frederick, Fred.Co., Md.. clockmaker or watchmaker -- |
