Caritat, H. (fl. 1799), New York.
Chandlee, Goldsmith (c.1746-1821), Winchester, Va.; also made surveying instruments and clocks.
Ellicott, Andrew (1754-1820), Baltimore; also made surveying instruments.
Folger, Walter, Jr. (1765-1849), Nantucket, Mass.; also made surveying instruments.
Greenough, Thomas (1710-1785), Boston; also made mathematical, surveying, and nautical instruments.
Hamlin, William (1772-1869), Providence, R.I.; also made mathematical and nautical instruments.
Holcomb, Amasa (1787-1875), Southwick, Mass.; also made surveying instruments.
Rittenhouse, Benjamin (1740-c.1820), Philadelphia; also made surveying instruments.
Rittenhouse, David (1732-1796), Philadelphia and Norristown, Pa.; also made surveying instruments.
Voight, Henry (1738-1814), Philadelphia; also made clocks and watches.