G C Baugh, W L Cowie, J C Dickinson, Duggan A P, A K B Evans, R H Evans, Una C Hannam, P Heath, D A Johnston, Hilda Johnstone, Ann J Kettle, J L Kirby, R Mansfield and A Saltman.
A group of experts in the field includes G C Baugh, W L Cowie, J C Dickinson, Duggan A P, A K B Evans, R H Evans, Una C Hannam, P Heath, D A Johnston, Hilda Johnstone, Ann J Kettle, J L Kirby, R Mansfield and A Saltman.