Part 25

Miller, Aaron fl. 1748-1771 Elizabethtown, Surveying; clocks; N.J. compasses

Morris, M. fl. 1785 New York Protractors

Newell, Andrew 1749-1798 Boston Mathematical; compasses

Newell, Joseph fl. 1800-1813 Boston Surveying

Pease, Paul fl. 1750 Probably Rhode Quadrant Island

Platt, Augustus 1793-1886 Columbus, Ohio Mathematical; surveying

Platt, Benjamin 1757-1833 Danbury, Compasses; Litchfield, and surveying; clocks New Milford, Conn.; Lanesboro, Mass.; Columbus, Ohio

Pope, Joseph 1750-1826 Boston Scientific; clocks

Potter, John fl. 1746-1818 Brookfield, Mass. Surveying

Potts, W. L. late 18th Bucks County, Pa. Surveying century

Prince, John 1751-1836 Salem, Mass. Scientific (practitioner)

Prince, Nathan fl. 1743 Boston (practitioner)

Pryor, Thomas fl. 1778 Philadelphia Mathematical

Revere, Paul 1735-1818 Boston Gunnery

Rittenhouse, 1740-c.1820 Philadelphia Astronomical; Benjamin surveying

Rittenhouse, David 1732-1796 Philadelphia and Astronomical; (practitioner) Norriton, Pa. surveying

Rittenhouse & Evans fl. 1770's Philadelphia Surveying

Sibley & Marble late 18th New Haven, Conn. Mathematical; (Clark Sibley and century clocks; watches Simeon Marble)

Smith, Cordial fl. 1775 Connecticut Surveying

Sommer, widow fl. 1753 New York Optical Balthaser

Sower, Christopher c. 1724-1740 Germantown and Mathematical; Philadelphia, Pa. clocks

Stiles & Baldwin fl. 1791 Northampton, Surveying (Jedidiah Baldwin) Mass.

Stiles & Storrs fl. 1792 Northampton, Surveying (Nathan Storrs and Mass. Jedidiah Baldwin)

Taws, Charles fl. 1795 Philadelphia Mathematical

Thacher, Charles 18th century Probably Boston Surveying

Thaxter, Samuel 1769-1842 Boston Nautical; mathematical surveying

Voight, Henry 1738-1814 Philadelphia Astronomical; clocks; watches

Wall, George, Jr. fl. 1788 Bucks County, Pa. Surveying