1) Artificer 2) Discoverer 3) Inventor 4) James hargreaves 
[crater] This crater has nearly merged with the larger Maclaurin H to the north, and the interior of both formations has been flooded by lava. As a result, Hargreaves is now an amphitheater-like formation with a wide gap in the northern rim. There is a slight notch in the southern rim, and a small craterlet is attached to the western outer ...
[n] - English inventor of the spinning jenny (1720-1778)