Part 33

Donegan, Joseph (fl. 1787), New York and Philadelphia; also made philosophical instruments.

Fisher, Martin (fl. 1790), Philadelphia.

Gatty, Joseph (fl. 1794), New York and Philadelphia; also made philosophical instruments.

Ketterer, Alloysius (fl. 1789), Philadelphia.

Wistar, Richard (fl. 1752), Wistarburg, N.J.

HOROLOGICAL

Blundy, Charles (fl. 1753), Charleston, S.C.; also made thermometric instruments.

Burnap, Daniel (1759-1838), East Windsor and Coventry, Conn.; also made surveying instruments.

Chandlee, Benjamin (1723-1791), Nottingham, Md.; also made surveying instruments.

Chandlee & Bros. (fl. 1790-1791), Nottingham, Md.; also made surveying instruments.

Chandlee, Ellis (1755-1816), Nottingham, Md.; also made surveying instruments.

Chandlee, Goldsmith (1751-1821), Winchester, Va.; also made astronomical and surveying instruments.

Chandlee, Isaac (1760-1813), Nottingham, Md.; also made surveying instruments.

Crow, George (c.1726-1772), Philadelphia; also made surveying instruments.

DeVacht, Joseph and Francois (fl. 1792), Gallipolis, Ohio; also made compasses and sundials.

Doolittle, Enos (1751-1806), Hartford, Conn.; also made surveying and nautical instruments.

Doolittle, Isaac (1721-1800), New Haven, Conn.; also made scientific instruments.

Doolittle, Isaac Jr. (1759-1821), New Haven, Conn.; also made surveying instruments.

Gilman, Benjamin C. (1763-1835), Exeter, N.H.; also made mathematical instruments.

Gilmur, Bryan (fl. end of 18th century), Philadelphia; also made mathematical instruments.

Harland, Thomas (1735-1807), Norwich, Conn.; also made surveying instruments.

Heisely, Frederick A. (1759-1839), Frederick, Md.; also made mathematical and surveying instruments.

Heisely, George (1789-1880), Harrisburg, Pa.; also made mathematical instruments.

Hoff, George (1740-1816), Lancaster, Pa.; also made surveying instruments.

Huntington, Gurdon (1763-1804), Windham, Conn., and Walpole, N.H.; also made surveying and other instruments.

Kennard, John (1782-1861), Newmarket, N.H.; also made surveying instruments.

Mendenhall, Thomas (fl. 1775), Lancaster, Pa.; also made mathematical instruments.

Miller, Aaron (fl. 1748-1771), Elizabethtown, N.J.; also made compasses and surveying instruments.