He had been student of Heike Kamerlingh Onnes, who had been the first to liquefy helium (a feat for which Onnes received a Nobel Prize).
... density of 427.3/km² (1,104.1/mi²). The racial makeup of the town is 40.00% White, 48.41% African American, 0.30% Native American, 3.41% Asian, 0.00% Pacific ...