Janet Johnston Peerage person ID=643200 Parents Archibald Johnston Children unknown Mackenzie Sir John Mackenzie of Coul, 3rd Bt. Sir Colin Mackenzie of Coul, 4th Bt. unknown daughter Mackenzie Siblings Eupham Johnston James Johnston Lady Graden Elizabeth Johnston Samuel Johnston Helene Johnston Rachel Johnston Partners Sir Alexander Mackenzie of Coul, 2nd Bt. George Winram of Liberton