Thanks, Fred. For the story that's been presented, Mark should be younger than obama since he was the offspring of Ruth and Barack Sr. after Sr. left Hawaii. Have you ever found when he went to college in the US? I haven't been able to find out when he received any of his degrees to work backwards to come up with an approximate age.
I found this photo of Mark and David as children. How old do you think they are?
This photo is supposed to be David. The caption says he was born 1968, died 1982. He died in a motorcycle accident when he was 14?
That boy has eyes more similar to Mark, which looks about right, than is obvious from the toddler photo above. Anyway, if David was allegedly born in 1968, based on the toddler's photo above, wouldn't that make Mark born around 66 or 67?
According to most reports, Ruth moved back to Kenya with Sr. in 1965, married there, and had both sons in Kenya. Okay, that could fit. They separated in 1971. Wikipedia That would make Mark about 5 (maybe six), wouldn't it? He remembers his father's abusive treatment of his mother, himself, and his brother, David at this age? Very possible, but there's a lot happening in this short timeline.
Here's an article written in November, 2009 that says he was 43 at that time. Obama's half brother describes abuse That would indicate he was born sometime before Nov, 1966.
Just trying to understand all the timelines, here.