born ▁March ▁ 1 2 , ▁ 1 8 8 3 ), ▁Mar tha ▁Howard ▁Fr ick ▁( born ▁August ▁ 9 , ▁ 1 8 8 5 ), ▁Helen ▁Clay ▁Fr ick ▁( born ▁September ▁ 3 , ▁ 1 8 8 8 ) ▁and ▁Henry ▁Clay ▁Fr ick , ▁Jr . ▁( born ▁July ▁ 8 , ▁ 1 8 9 2 ). ▁In ▁ 1 8 8 2 , ▁after ▁the ▁formation ▁of ▁the ▁partners hip ▁with ▁Andrew ▁Car neg ie , ▁Fr ick ▁and ▁his ▁wife ▁bought ▁a ▁home ▁they ▁eventually ▁called ▁Clay ton , ▁an ▁estate ▁in ▁Pitts burgh ' s ▁East ▁End . ▁They ▁moved ▁into ▁the ▁home ▁in ▁early ▁ 1 8 8 3 . ▁The ▁Fr ick ▁children ▁were ▁born ▁in ▁Pitts burgh ▁and ▁were ▁raised ▁at ▁Clay ton . ▁Two ▁of ▁them , ▁Henry , ▁Jr . ▁and ▁Mar tha , ▁died ▁in ▁inf ancy ▁or ▁child hood . ▁ ▁In ▁ 1 9 0 4 , ▁he ▁built ▁E agle ▁Rock , ▁a ▁summer ▁estate ▁at ▁Pr ides ▁Cross ing ▁in ▁B ever ly , ▁Massachusetts ▁on ▁Boston ' s ▁fashion able ▁North ▁Sh ore . ▁ ▁The ▁ 1 0 4 - room ▁m ansion ▁designed ▁by ▁Little ▁& ▁Brow ne ▁was ▁raz ed ▁in ▁ 1 9 6 9 . ▁ ▁Fr ick ▁was ▁a ▁fer vent ▁art ▁collect or ▁whose ▁wealth ▁allowed ▁him ▁to ▁accum ulate ▁a ▁large ▁collection . ▁By ▁ 1 9 0 5 , ▁Henry ▁Clay ▁Fr