In the biography that Stephen Humphrey Bogart wrote about his father (Bogart: In Search of My Father, Penguin Books, 1995), he had this to say about his father and his mother, actress Lauren Bacall:
My mother was a lapsed Jew, and my father was a lapsed Episcopalian. Neither of my parents had any strong belief in God, but, like many parents, they sent their children to Sunday school, out of a vague sense that religion was a good thing for a kid. We were being raised Episcopalian rather than Jewish because my mother felt that would make life easier for Leslie and me during those post-World War II years.
...In that tree [at the age of 8] I gave up a belief in God, and nothing I have seen in the last thirty-seven years has changed my mind on that point.