 Sifton was one of four Canadian delegates to the Paris Peace Conference of 1919 , along with Borden , Charles Doherty , and George Eulas Foster . There , he acted as vice chair of the Commission on Ports , Waterways , and Railways , and served on the Commission on Aerial Navigation . In these capacities he argued for Canada to be treated as an independent state at a time when its foreign policy was still managed by the United Kingdom . On June 28 , 1919 , Arthur Sifton was one of two Canadians to sign the Treaty of Versailles . 
