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.