1. For complete arguments and citations for many of the claims (especially historical ones) made here, see Cushing (1994).
2. The terminology “causal quantum theory program” has historically come to be used to cover a number of theoretical attempts (such as stochastic mechanics) in which the common feature was not necessarily determinism, but rather the actual existence of entities (such as particles and trajectories) even for quantum phenomena. In my historical account here, the “causal program” is used in this wider sense.
3. Although “Copenhagen” and “Bohm” are two different theories,the expressions “Copenhagen interpretation” and “Bohm interpretation” have become so commonly used in the literature that I often follow that practice.
4. These include the usual Hilbert-space structure, a correspondence scheme between these mathematical objects and the physical states and observables they represent, rules for calculating expectation values of observables, and a projection postulate (either explicitly or effectively assumed) upon measurement.
5. Diirr et al. (1992a) have emphasized that Bohmian mechanics is really a first-order theory characterized by Eqs. (1) and (3) together [rather than by Eqs. (1) through (4)]. However, I am here interested in the theory as Bohm himself presented it.