The policy of planned blocks was pursued primarily by Clifford Sifton during his time as Interior Minister of Canada.
Clifford Evans | Clifford Odets | Clifford Geertz | Clifford Jordan | Clifford Harper | Clifford Edmund Bosworth | Clifford Curzon | Clifford Chance | Clifford | William Kingdon Clifford | Max Clifford | Clifford the Big Red Dog | Clifford D. Simak | Baron de Clifford | Paul Clifford | Clifford Last | Clifford Grey | Clifford algebra | Baron Clifford of Chudleigh | Nathan Clifford | Natalie Clifford Barney | Clifford torus | Clifford Sifton | Clifford Meth | Clifford J. Levy | Clifford Grant | Clifford Algebra | Clark Clifford | Sir Charles Clifford, 1st Baronet | Sam Sifton |
Under the tutelage of some influential figures working for the Liberal Party of Canada, most notably Clifford Sifton and Frank Oliver, Harkin was able to acquire an appointment to be the first commissioner of the Dominion Parks Branch in 1911.