▁D . C .: ▁ 1 9 6 0 ? ▁ ▁Pat ric ia ▁C . ▁John ston , ▁" The ▁Art ist ' s ▁Life , ▁The ▁Indian ' s ▁World ," ▁in ▁American ▁History ▁Illustr ated , ▁vol . ▁ 1 3 , ▁no . ▁ 9 ▁( J anu ary ▁▁ 1 9 7 9 ): ▁pp .   3 9 – 4 6 . ▁ ▁Frances ▁D ens more , ▁The ▁Collection ▁of ▁Water color ▁Draw ings ▁of ▁the ▁North ▁American ▁Indian ▁by ▁S eth ▁East man ▁in ▁the ▁James ▁Jer ome ▁Hill ▁Reference ▁Library , ▁St . ▁Paul , ▁Austin , ▁Texas : ▁University ▁of ▁Texas ▁Press , ▁ 1 9 6 1 . ▁ ▁" E ast man , ▁Cloud ▁Man , ▁Many ▁Light nings : ▁An ▁Ang lo - D ak ota ▁Family ", ▁compiled ▁by ▁William ▁L . ▁Be an ▁for ▁the ▁East man ▁family ▁re union , ▁ 1 9 8 9 , ▁Lincoln , ▁Neb .: ▁W . L . ▁Be an , ▁ 1 9 8 9 . ▁ ▁L ila ▁M . ▁Johnson , ▁" Found ▁( and ▁P urch ased ): ▁S eth ▁East man ▁Water ▁Colors ," ▁in ▁Minnesota ▁History , ▁v . ▁ 4 2 , ▁no . ▁ 7 ▁( F all ▁ 1 9 7 1 ): ▁pp . ▁ 2 5 8 – 2 6 7 . ▁ ▁" H istor ic ▁Minnesota ▁In ▁Cent enn ial ▁Ex hib ition ", ▁in ▁Bul letin ▁of