Those pictures fit neatly into the timeline. The fence at the zoo was January 63 on the way to Indonesia. We think Stanley herself actually took him to Indonesia although Fred has an alternate thesis with Maya Angelou being the custodian.
In the water is in the period in 69--same age as the picture with the Dentist in the third grade. Exactly what the occasion for the return was is not clear on the record. And it is also puzzling they decided in 66 to bring him back to the states; got him there in 69; and then took him back to Jakarta for another year before moving him back permanently.
That's because he himself appears to have said to an interviewer he went to Indonesia at the age of two:
You might recall where that article appeared, I don't have the full page.
...although Fred has an alternate thesis with Maya Angelou being the custodian
Not quite. Maya Angelou first appears in this connection when she was in Cairo with David DuBois, working for The Arab Voice, in the same period as Malcolm X made his first trip to Egypt. She then shows up in Hawaii where she apparently stayed with her brother Bailey Johnson, shortly after Malcolm was assassinated in 1965.
Maya and brother Bailey Johnson in Hawaii in 1965
'In the water' (or at the beach) with Stanley Armour Dunham looks to me more like the same summer.