Final answer:
Salvador Minuchin, Carl Whitaker, and Murray Bowen are considered the major founders of family therapy, while John Gottman is not.
Step-by-step explanation:
According to the sources provided, the major founders of family therapy listed are Salvador Minuchin, Carl Whitaker, and Murray Bowen. John Gottman is not considered one of the major founders of family therapy. The sources do not mention John Gottman as a notable contributor to the field of family therapy. In contrast, while John Gottman is a prominent figure in psychological research and in the field of couples therapy, he is not traditionally recognized as one of the main founders of family therapy.