Trace Clan Donnachaidh from Highland Perthshire across the world, from Alexander “Sandy” Robertson of Struan, the Poet Chief who fought in three Jacobite risings between 1689 and 1745, through Colin Robertson’s Hudson’s Bay Company career, to the cleared Robertson tenant families of Strathtummel who founded new communities in Glengarry, Upper Canada. Five waves of migration and six representative Robertson journeys.