I concede your point, because it isn't the parents of the mother who declare the contents of a birth certificate, it's the parents themselves. We are to take it that (Stanley) Ann Dunham Obama signed the document.
But if you are going to use that 'on the dock' image to show that Stanley Armour had nothing against appearing in the company of 'negro' people, you need to have some idea who those people are.
Some appear to be from the Nachmanoff groups, there's Dave and Robert Robillard, and Marda - and the asian woman is a graduate of the U of HI from class of 1959. There's an unidentified young woman standing very closely to the central character, there's a captain and an officer, three young crew members squatting, and a row of union workers in the background. Plus a couple of unidentified white men and another asian woman who appears to have been added. How you can establish what Stanley Armour felt about coloured people from that collection, escapes me. It only works if the central character was the kenyan student, and that possibility has just about been eliminated.
The captain, the officer and the crew - he would have had no choice over, if he was meeting some asian couple he knew on a dock in the 70's. Must have been someone who warranted a welcome committee.
The contents are declared by whoever has knowledge of the birth. The mother could have just easily been sedated through the entire birth and signed the certificate after it was filled out. Or it could have been filled out by the grandmother or anyone. The signature is not particularly compelling since part of the signature was parenthetically augmented. There is as much evidence of photoshop on that document as there is on any of the photos.
But if you are going to use that 'on the dock' image to show that Stanley Armour had nothing against appearing in the company of 'negro' people, you need to have some idea who those people are.
It doesn't really matter. A stigma is a stigma, and anyone who really had problems with such "stigmas" would go out his way to avoid being photographed with anyone he was uncomfortable being around. This is a group photo that clearly wasn't carefully posed, but was most likely based on where people were standing at the time someone decided to take the picture, which means Stanley was already near people he should have been trying to avoid. The idea that his feelings can only be established by the "central character" is nonsense.