▁of ▁the ▁tw enti eth ▁century , ▁and ▁was ▁a ▁Ho over ▁Institution ▁senior ▁research ▁fellow . ▁ ▁Education ▁and ▁career ▁Davis ▁received ▁his ▁Ph . D . ▁from ▁Harvard ▁University ▁and ▁taught ▁at ▁Smith ▁College , ▁Clark ▁University , ▁Pennsylvania ▁State ▁University , ▁Pr inc eton ▁University , ▁Columbia ▁University , ▁the ▁University ▁of ▁California ▁at ▁Ber keley ▁and ▁the ▁University ▁of ▁Southern ▁California . ▁ ▁Among ▁his ▁other ▁accomplish ments , ▁Davis ▁ ▁served ▁as ▁president ▁of ▁the ▁Population ▁Association ▁of ▁America ▁and ▁the ▁American ▁Soci ological ▁Association ▁ ▁represented ▁the ▁United ▁States ▁on ▁the ▁United ▁Nations ▁Population ▁Commission ▁ ▁member ▁of ▁the ▁Ad vis ory ▁Council ▁of ▁the ▁National ▁Aer onaut ics ▁and ▁Space ▁Administration ▁and ▁the ▁Ad vis ory ▁Committee ▁on ▁Population ▁for ▁the ▁U . S . ▁Bureau ▁of ▁the ▁Census ▁ ▁was ▁the ▁first ▁soci ologist ▁in ▁the ▁United ▁States ▁to ▁be ▁elected ▁to ▁the ▁National ▁Academy ▁of ▁Sciences ▁( 1 9 6 6 ). ▁ ▁Davis ▁won ▁the ▁I rene ▁B . ▁T ae uber ▁Award ▁for ▁out standing ▁research ▁in ▁dem ography ▁( 1 9 7 8 ), ▁the ▁Common ▁We alth ▁Award ▁for ▁distinguished ▁work ▁in ▁soci ology ▁( 1 9 7 9 ), ▁and ▁the ▁Career ▁of ▁Dist ingu ished ▁Sch olar ship ▁Award ▁from ▁the ▁American ▁Soci ological ▁Association ▁( 1 9 8 2 ). ▁In ▁ 1 9 5 3 ▁he ▁was ▁elected ▁as ▁a ▁Fellow ▁of ▁the ▁American ▁Statist ical ▁Association . ▁ ▁Research ▁Davis ▁led ▁and ▁conducted ▁major ▁studies