▁fund ▁was ▁used ▁to ▁en large ▁the ▁park , ▁increasing ▁its ▁size ▁to ▁almost ▁. ▁Following ▁the ▁death ▁of ▁Ad ela ide ▁Howard ▁Child s ▁Fr ick ▁in ▁ 1 9 3 1 , ▁the ▁Fr ick ▁Collection ▁was ▁opened ▁to ▁the ▁public ▁as ▁a ▁museum ▁in ▁ 1 9 3 5 . ▁ ▁Many ▁years ▁after ▁her ▁father ' s ▁death , ▁Helen ▁Clay ▁Fr ick ▁returned ▁to ▁Clay ton ▁in ▁ 1 9 8 1 , ▁and ▁lived ▁there ▁until ▁her ▁death ▁in ▁ 1 9 8 4 . ▁After ▁extensive ▁rest oration , ▁this ▁property ▁was ▁also ▁opened ▁to ▁the ▁public ▁in ▁ 1 9 9 0 ▁as ▁the ▁Fr ick ▁Art ▁& ▁Historical ▁Center . ▁ ▁Fr ick ▁was ▁elected ▁an ▁honor ary ▁member ▁of ▁the ▁Al pha ▁chapter ▁of ▁Ph i ▁Mu ▁Al pha ▁S inf onia ▁music ▁frat ern ity ▁at ▁the ▁New ▁England ▁Conserv atory ▁of ▁Music ▁on ▁October ▁ 1 9 , ▁ 1 9 1 7 . ▁ ▁Henry ▁Clay ▁Fr ick ▁Business ▁Records ▁( Arch ives ) ▁The ▁Henry ▁Clay ▁Fr ick ▁archive ▁of ▁business ▁records ▁consisted ▁of ▁the ▁documents ▁regarding ▁the ▁business ▁and ▁financial ▁deal ings ▁from ▁ 1 8 4 9 – 1 9 1 9 . ▁These ▁original ▁documents ▁record ▁the ▁evolution ▁of ▁the ▁period ▁of ▁American ▁steel ▁and ▁coal ▁industrial ▁growth . ▁Document ation ▁includes ▁first ▁business ▁activities , ▁first ▁coal ▁firm , ▁H . C . ▁Fr ick ▁& ▁Company , ▁to ▁the ▁formation ▁of ▁United ▁States ▁Ste