JERK was used by J. S. Beggs in 1955 in Mechanism iv. 122: "Since the forces to produce accelerations must arise from strains in the materials of the system, the rate of change of acceleration, or jerk, is important" (OED2).
JORDAN CURVE appears in "On the Existence of the Green's Function for the Most General Simply Connected Plane Region," W. F. Osgood, Transactions of the American Mathematical Society, Vol. 1, No. 3. (Jul., 1900): "By a Jordan curve is meant a curve of the general class of continuous curves without multiple points, considered by Jordan, Cours d'Analyse, vol. I, 2d edition, 1893..." (OED2).
JORDAN CURVE THEOREM is dated 1915-20 in RHUD2.
The term is found in K. Venkatachaliengar, "A simple proof of the Jordan-curve theorem," Quart. J. Math., Oxford Ser. 8, 241-244 (1937).