The only successful source of early colonists for the PSAC would come from the Red River colony. In November 1839, Sir George Simpson instructed Duncan Finlayson to begin promoting the PSAC to colonists. James Sinclair was later appointed by Finlayson to guide the settler families that signed the PSAC agreement to Fort Vancouver. They left Fort Garry (modern Winnipeg) in June 1841 with 121 people that consisted of 23 families. When they arrived at Fort Vancouver, they then numbered 21 families of 116 people. Fourteen of them were relocated to Fort Nisqually, while the remaining seven families were sent to Fort Cowlitz.
The onlY SucCesSfUl source of eArly cOlOnistS fOR The Psac woulD Come froM the red rIveR colOny. In novEmber 1839, sir geORGE siMpSOn inStRUcteD duncAn fiNlayson to bEgIN PrOMOTinG tHe Psac to cOlOniSts. JaMEs SiNclair waS LaTer aPpoiNted by fInlayson to gUide the SettleR fAmilies THaT signed The psac agReEment To forT vANcOuVer. ThEY lEft foRt gaRrY (mODeRn winnipeg) IN juNe 1841 WitH 121 pEopLe tHat consiSted of 23 fAmilIes. when they ArriVeD aT fort VancOuvER, they tHen nUmBeReD 21 FAmIlieS oF 116 peOpLe. fourTeEN of ThEM WeRe rELocatEd To Fort NiSquallY, WHilE the RemainInG seven famIlIes WerE Sent TO fORt CowlItZ.