- Config ur ational ▁Hart ree – F ock ▁( M CH F ) ▁approach ▁to ▁atomic - structure ▁calculations ▁and ▁for ▁her ▁theoretical ▁prediction ▁concerning ▁the ▁existence ▁of ▁the ▁negative ▁calci um ▁ion . ▁For ▁this ▁last ▁accomplish ment , ▁she ▁was ▁elected ▁to ▁grade ▁of ▁Fellow ▁of ▁the ▁American ▁Phys ical ▁Society . ▁ ▁Early ▁life ▁Charlotte ▁Fro ese ▁was ▁born ▁on ▁September ▁ 2 1 , ▁ 1 9 2 9 , ▁in ▁the ▁village ▁of ▁P rav div ka ▁( former ly ▁Nikol ay ev ka ), ▁in ▁the ▁ ▁Don et sk ▁region , ▁in ▁the ▁present - day ▁Ukraine , ▁to ▁parents ▁of ▁M enn on ite ▁descent . ▁Her ▁parents ▁imm igr ated ▁to ▁Germany ▁in ▁ 1 9 2 9 ▁on ▁the ▁last ▁train ▁allowed ▁to ▁cross ▁the ▁border ▁before ▁its ▁closure ▁by ▁Soviet ▁authorities . ▁After ▁a ▁few ▁months ▁in ▁a ▁refuge e ▁camp , ▁her ▁family ▁was ▁allowed ▁to ▁imm igr ate ▁to ▁Canada , ▁where ▁they ▁eventually ▁established ▁themselves ▁in ▁Ch ill iw ack , ▁British ▁Columbia . ▁ ▁Education ▁and ▁research ▁She ▁obtained ▁both ▁a ▁B . A . ▁degree , ▁with ▁hon ors , ▁in ▁Mathemat ics ▁and ▁Chem istry ▁and ▁an ▁M . A . ▁degree ▁in ▁App lied ▁Mathemat ics ▁from ▁the ▁University ▁of ▁British ▁Columbia ▁in ▁ 1 9 5 2 ▁and ▁ 1 9 5 4 , ▁respectively . ▁She ▁then ▁obtained ▁her ▁Ph . D . ▁in ▁App lied ▁Mathemat ics ▁and ▁Comput ing ▁at