He also served at Floors in the nascent parish of St Barnabas, which had been brought into existence owing to the forced removal of people from the Malay Camp in terms of the apartheid Group Areas Act.
In 1960, Pullen was appointed Archdeacon of Bechuanaland, an area then including the southern half of modern Botswana, and served in parishes in Vryburg and Mafikeng.
This was a tumultuous time in the history of the church in relation to the tightening grip of apartheid legislation, leading to Crowther's deportation on 30 June 1967.
A significant project during Pullen's deanship was the commissioning and eventual erection and dedication, by Wheeldon on 15 January 1970, of a statue honouring Henrietta Stockdale.
After serving the Diocese of Kimberley and Kuruman for 32 years, and as an Honorary Canon of St Cyprian's from 1975 until his death, Pullen retired to Cape Town where he was appointed Rector of All Saints, Sonnebloem (formerly a part of District Six).