▁worked ▁for ▁William ▁Burn ett . ▁As ▁a ▁tr ader , ▁he ▁became ▁familiar ▁with ▁local ▁Native ▁American ▁pe op les ▁and ▁likely ▁learned ▁the ▁dominant ▁language . ▁He ▁developed ▁trad ing ▁at ▁the ▁K ek ion ga , ▁a ▁center ▁of ▁the ▁Miami ▁people . ▁ ▁In ▁ 1 7 8 5 , ▁Kin zie ▁helped ▁rescue ▁two ▁American ▁citizens , ▁sister s , ▁who ▁had ▁been ▁kid n apped ▁in ▁ 1 7 7 5 ▁from ▁Virginia ▁by ▁the ▁Shaw ne e ▁and ▁adopted ▁into ▁the ▁tribe . ▁One ▁of ▁the ▁girls , ▁Margaret ▁McK in zie , ▁married ▁him ; ▁her ▁sister ▁Elizabeth ▁married ▁his ▁companion ▁Clark . ▁Margaret ▁lived ▁with ▁Kin zie ▁in ▁Detroit ▁and ▁had ▁three ▁children ▁with ▁him . ▁After ▁several ▁years , ▁she ▁left ▁Kin zie ▁and ▁Detroit , ▁and ▁returned ▁to ▁Virginia ▁with ▁their ▁children . ▁All ▁three ▁of ▁the ▁Kin zie ▁children ▁eventually ▁moved ▁as ▁adult s ▁to ▁Chicago . ▁ ▁In ▁ 1 7 8 9 , ▁Kin zie ▁lost ▁his ▁business ▁in ▁the ▁K ek ion ga ▁( mod ern ▁Fort ▁Wayne , ▁Indiana ) ▁and ▁had ▁to ▁move ▁further ▁from ▁the ▁western ▁U . S . ▁front ier . ▁The ▁US ▁was ▁ex cluding ▁Canad ians ▁from ▁trade ▁with ▁the ▁Native ▁Americans ▁in ▁their ▁territory . ▁As ▁the ▁United ▁States ▁sett lers ▁continued ▁to ▁populate ▁its ▁western ▁territory , ▁Kin zie ▁moved ▁further ▁west . ▁ ▁Mar riage ▁and ▁move ▁to ▁Chicago ▁ ▁In ▁March ▁ 1 0 , ▁ 1