Parent:
Carl Hempel

Children:
Mathias Risse (2000), Princeton.
Maria Concetta Di Maio (1992), Princeton.
Lyle Zynda
Richard Bradley

Misc:

M.S. with Rudolf Carnap at Chicago, 1952.
PhD with Carl Hempel (and according to the introduction to Jeffrey's dissertation, co-supervised by Hilary Putnam) at Princeton, 1955 to 1957.

Dissertation Title: "Contributions to the Theory of Inductive Probability", Princeton 1957.