George Ntim is the President of the African Development Foundation, an international 501(c)(3) organization founded to promote goodwill and strengthen relationships between the U.S. and Africa through youth-oriented initiative. He was invited to and attended the state dinner on Monday
Lloyd Pierson is President of the United States African Development Foundation, a U.S. government agency with a mandate to promote the participation of Africans in the economic and social development of their countries. Apparently, he was not invited to the state dinner.
Thanks for your comment, though.