Warren, Benjamin (fl. 1740-1790), Plymouth, Mass.; also made surveying instruments.
Williams, William (1737/38-1792), Boston; also made mathematical instruments.
OPTICAL
Benson, John (fl. 1793-1797).
Clark, Robert (fl. 1785), Charleston, S.C.; also made nautical and surveying instruments.
Sommer, Widow Balthaser (fl. 1753), New York.
Whitney, John (fl. 1801), Philadelphia; also made mathematical instruments.
Whitney, Thomas (fl. 1798-1821), Philadelphia; also made mathematical and surveying instruments.
SURGICAL
Bailey, John (fl. 1778), Fishkill, N.Y.; also made surveying instruments.
Fosbrook, W. (fl. 1786), New York; also made dental instruments.
Youle, James (1740-1786), New York.
Youle, John (fl. 1786), New York.
SURVEYING
Bailey, John (fl. 1778), Fishkill, N.Y.; also made surgical instruments.
Bailey, John, II (1752-1823), Hanover and Lynn, Mass.
Baldwin, Jedidiah (c. 1777-1829), Salem, Boston, and Northampton, Mass., and Hanover, N.H.
Biggs, Thomas (fl. 1792-1795), New York and Philadelphia.
Blakeslee, Ziba (1768-1834), Newtown, Conn.
Bowles, Thomas S. (c. 1765-1821?), Portsmouth, N.H.
Breed, Aaron (late 18th to mid-19th centuries), Boston.
Burnap, Daniel (1759-1838), East Windsor and Coventry, Conn.; also made clocks.
Chandlee, Benjamin, Jr. (1723-1791), Nottingham, Md.; also made clocks.
Chandlee & Bros. (fl. 1790-1791), Nottingham, Md.; also made clocks.
Chandlee, Ellis (1755-1816), Nottingham, Md.; also made clocks.
Chandlee, Ellis & Bros. (fl. 1791-1797), Nottingham, Md.; also made clocks.
Chandlee, Goldsmith (c.1746-1821), Winchester, Va.; also made clocks and sundials.
Chandlee, Isaac (1760-1813), Nottingham, Md.; also made clocks.
Early American Scientific Instruments and Their Makers · The Wunder Library — complete classics, free to read, with narration.