In part 1 of this essay, which appeared in the Psychoanalytic Quarterly issue immediately previous to this one, I reviewed the gradual emergence of psychoanalytic field theory from tiny seeds embedded in Sigmund Freud's early writings about object relations and transference-countertransference interaction and its subsequent halting but progressive growth. Certainly, psychoanalytic field theory received acceleration from the contributions of Donald W. Winnicott and Wilfred R. Bion; in this regard and in many other respects, these two giants in the field left a lasting imprint on clinical and theoretical psychoanalysis as we know it today. I discussed their contributions in particular in the first part of this two-part essay in my discussion of an outstanding overview of the field today, Defining Psychoanalysis: Achieving a Vernacular Expression (Miller 2016).