Blackman, David (2012). "Aylward Manley Blackman". The Blackman Family. David Blackman. Archived from the original on 8 March 2016. Retrieved 8 March 2016.
Petch, Alison. "Winifred Susan Blackman". England: the other Within, Analysing the English Collections at the Pitt Rivers Museum. Archived from the original on 9 March 2016. Retrieved 8 March 2016.
Blackman, David (2012). "Aylward Manley Blackman". The Blackman Family. David Blackman. Archived from the original on 8 March 2016. Retrieved 8 March 2016.
Petch, Alison. "Winifred Susan Blackman". England: the other Within, Analysing the English Collections at the Pitt Rivers Museum. Archived from the original on 9 March 2016. Retrieved 8 March 2016.