Part 27

New Milford: Benjamin Platt (1757-1833); compasses and clocks.

Newtown: Ziba Blakeslee (1768-1834); surveying instruments.

Norwich: Thomas Harland (1735-1807); surveying instruments and clocks.

Windham: Gurdon Huntington (1763-1804); clocks and surveying and other instruments.

Woodstock: Peregrine White (1747-1834); surveying instruments and clocks.

----: Smith, Cordial (fl. 1775); surveying instruments.

DELAWARE

Wilmington: George Crow (c. 1726-1772); surveying instruments and clocks.

MARYLAND

Baltimore: Benjamin Banneker (c. 1734-1806), practitioner.

Andrew Ellicott (1754-1820), practitioner; surveying and astronomical instruments.

Benjamin K. Hagger (c. 1769-1834); mathematical and surveying instruments.

Frederick: Frederick A. Heisely (1759-1839); clocks and mathematical instruments.

Nottingham: Benjamin Chandlee, Jr. (1723-1791); clocks and surveying instruments.

Chandlee & Bros. (fl. 1790-1791); clocks and surveying instruments.

Ellis Chandlee (1755-1816); surveying instruments and clocks.

Ellis Chandlee & Bros. (fl. 1791-1797); clocks and surveying instruments.

Isaac Chandlee (1760-1813); surveying instruments and clocks.

MASSACHUSETTS

Boston: Jedidiah Baldwin (c. 1777-1829); surveying instruments.

Aaron Breed (1791-1861); surveying instruments.

Bartholomew Burges (fl. 1789); scientific instruments.

Jere Clough (18th century); surveying instruments.

John Dabney, Jr. (fl. 1739); mathematical instruments.

Jonathan Dakin (fl. 1745); mathematical instruments and balances.

John Dupee (fl. after 1761); surveying instruments.

Samuel Grainger (fl. 1719), practitioner.

Stephen Greenleaf (1704-1795); mathematical instruments.