or ne ▁( ; ▁June ▁ 5 , ▁ 1 8 9 7   – ▁October ▁ 9 , ▁ 2 0 0 0 ) ▁was ▁an ▁American ▁phil os opher ▁who ▁concentr ated ▁primarily ▁on ▁the ▁philosophy ▁of ▁religion ▁and ▁met aph ys ics , ▁but ▁also ▁contributed ▁to ▁orn ith ology . ▁He ▁developed ▁the ▁ne oc lass ical ▁idea ▁of ▁God ▁and ▁produced ▁a ▁modal ▁proof ▁of ▁the ▁existence ▁of ▁God ▁that ▁was ▁a ▁development ▁of ▁St . ▁An sel m ' s ▁ont ological ▁argument . ▁Hart sh or ne ▁is ▁also ▁noted ▁for ▁developing ▁Alfred ▁North ▁White head ' s ▁process ▁philosophy ▁into ▁process ▁the ology . ▁ ▁Early ▁life ▁and ▁education ▁ ▁Hart sh or ne ▁( pr on ounced ▁h arts - horn ) ▁was ▁born ▁in ▁K itt anning , ▁Pennsylvania , ▁and ▁was ▁a ▁son ▁of ▁Re ver end ▁Francis ▁C ope ▁Hart sh or ne ▁( Oct ober ▁ 4 , ▁ 1 8 6 8 ▁- ▁April ▁ 1 6 , ▁ 1 9 5 0 ) ▁and ▁Mar guer ite ▁H aught on ▁( Se ptember ▁ 6 , ▁ 1 8 6 8 ▁- ▁November ▁ 4 , ▁ 1 9 5 9 ), ▁who ▁were ▁married ▁on ▁April ▁ 2 5 , ▁ 1 8 9 5 ▁in ▁Bry n ▁M aw r , ▁Mont gom ery ▁County , ▁Pennsylvania . ▁Rev . ▁F . ▁C . ▁Hart sh or ne , ▁who ▁was ▁a ▁minister ▁in ▁the ▁Protest