esis ▁on ▁new ▁structures ▁for ▁social ▁enter prise ▁business es ▁ ▁He ▁stated ▁in ▁an ▁interview ▁with ▁Google ’ s ▁Start up ▁Gr ind ▁that ▁he ▁comes ▁from ▁a ▁working ▁middle - class ▁family ▁and ▁is ▁not ▁a ▁desc endant ▁of ▁industrial ist ▁John ▁D . ▁Rock ef eller . ▁ ▁Career ▁ ▁Military ▁service ▁In ▁ 2 0 0 1 , ▁Rock ef eller ▁began ▁his ▁career ▁as ▁a ▁military ▁officer , ▁serving ▁in ▁the ▁United ▁States ▁Air ▁Force ▁and ▁J AG ▁Corps . ▁During ▁his ▁military ▁career , ▁Rock ef eller ▁served ▁at ▁posts ▁in ▁Texas , ▁Louisiana , ▁Colorado , ▁The ▁Pent agon , ▁The ▁H ague ▁and ▁in ▁Ira q . ▁He ▁is ▁a ▁veter an ▁of ▁the ▁Ira q ▁War ▁and ▁participated ▁in ▁the ▁Ira q ▁tro op ▁sur ge ▁of ▁ 2 0 0 7 . ▁ ▁Law ▁firm ▁In ▁ 2 0 1 1 , ▁Rock ef eller ▁joined ▁the ▁international ▁law ▁firm ▁Mil bank , ▁Twe ed , ▁Had ley ▁& ▁McC loy ▁( Mil bank ▁L LP ) ▁as ▁an ▁associate ▁att orney . ▁Rock ef eller ▁worked ▁in ▁the ▁firm ' s ▁lit ig ation ▁department ▁in ▁its ▁Washington ▁D . C ▁office ▁where ▁his ▁duties ▁included ▁lit ig ating ▁financial ▁and ▁se cur ities ▁disput es . ▁He ▁was ▁involved ▁in ▁lit ig ation ▁to ▁return ▁invest or ▁capital ▁following ▁Le h man ' s ▁bank rupt cy ▁fil ing . ▁ ▁Street Sh ares ▁In ▁ 2 0 1 3 ,