Final answer:
James A. Hamilton, MD, PhD does not appear in the provided references, which discuss other medical and scientific figures such as Lawrence Joseph Henderson and James Van Allen, known for blood buffer system research and contributions to space exploration respectively.
Step-by-step explanation:
James A. Hamilton, MD, PhD (1907-1997) does not seem to have a prominent or recorded history based on the provided information and references, which focus on other medical professionals such as Lawrence Joseph Henderson, a physician, biochemist, and physiologist, and James Van Allen, a physicist. It is possible that James A. Hamilton may not have had the same level of recognition or that his works were not included in the given references. The individuals mentioned in the references contributed significantly to their respective fields. Lawrence Joseph Henderson, for instance, made important discoveries regarding the acid-base balance in human blood physiology and the buffer system, while James Van Allen was pivotal in early space exploration.