Yes indeed, maybe she brought him with her. And no earlier photos since the background or others in photos might have shown the falsehood of the myth. I was sort of thinking that he had been brought earlier and maybe stayed with FMD/wife and children, but maybe that did not happen after all.
She enrolled at the U of HI. Her mother worked at the Bank. Stanley Armour was working at the furniture store. She married Lolo apparently. I can’t see how there would have been time to care for a two or three year old.
If anyone was staying with Frank and Helen, it would have been the son of the kenyan. Where zero was living is anyone’s guess, but the brother of Maya Angelou would be a good candidate. That’s purely speculation, because he totally dropped out of sight.