Mark Okoth Obama Ndesandjo with his mother, Ruth Baker Ndesandjo (Courtesy Mark Okoth Obama Ndesandjo)
This photo shows Barack Obama with Malia and Sasha as young girls:
From:
http://www.dailymail.co.uk/news/article-3133390/Obama-golfs-Palm-Springs-Father-s-Day-head-home-European-tour.html