Trotter was also the surgeon, at University College London for whom Wilfred Bion worked as a resident in his own medical training, before he famously studied groups and trained as a psychoanalyst at the Tavistock Clinic.
At University College London, Trotter was the surgeon while Wilfred Bion served as a resident during his medical training. Before becoming renowned for his studies of groups and psychoanalytic training at the Tavistock Clinic, Bion worked under Trotter's guidance.