First, and this is very important for people to note, when the photo was taken, the legal name of the boy was Barry Soetoro, the legally adopted son of Lolo Soetoro, Indonesian! And Barry was still the legal responsibility of Lolo Soetoro in 1980 (Barry graduated from High School in 1979 and entered Occi College in August or September of 1979), according to the divorce pleadings of Stanley Ann Soetoro.
Second, there is a real possibility that Barak Obama never knew of this boy until the photos were taken, and then may not have been informed that he was his son! There is no marriage cert for Stanley Ann and Barak, only a divorce decree which was never signed off on by Barak.
Third, Barak's knowledge of Stanley Ann may have been more through her alcoholic father who drank with Barak senior, than through contact with Stanley Ann. Frankly, with the layers of lies Barry Soetoro has already been caught in, it is not wise to trust anything he says regarding his mother and Barak Obama.
Meant to ping you since it is you who started this thread.
In general, I'd agree with you on that statement. In fact, there are quite a number of key statements in the autobiography that are false.
But when you say that Barack Sr. never acknowledged that he was Barry's father, the bulk of the credible evidence doesn't support that, especially that photo of Barack Sr. with Barry - without Stanley Ann, without the grandparents, without anyone else. Assuming that the photo was not created electronically at a later date, it's not very logical that Barack Sr. would agree to pose for that photo at that time if he had not agreed that Barack Jr. was his son. What would be the occasion for such a pose alone if it weren't a father-son thing? I just can't think of any other reason for such a pose.
Furthermore, about ten years later, Barack Jr. visited Barack Sr.'s family in Kenya. Now, unless Barack Sr. had acknowledged to his relatives that Barack Jr. was his son, it wouldn't be logical for the Kenyan "relatives" to give Jr. the warm welcome that they did, complete with photographic evidence of it. Don't think that the trip there would even have come off unless the Kenyans had been told by Barack Sr. that Barack Jr. was his son - whether or not Jr. was his biological son in fact. And if the late Barack Sr. had never told his mother about Jr. being his son, I don't think that Sr.'s mother would be telling the media last year about Jr. being her grandson and Jr. being born in Kenya.