She never told him about the child? Are you serious? She supposedly got pregnant in November 1960, married the Kenyan in Feb. of 1961, she would have been 4 months pregnant. Do you seriously believe she would marry him when she was 4 months pregnant with his child, and not tell him. That is just ludicrous unless they never were married and it was all a lie.
You suppose they were married. No one can find a marriage license, notice, witness, etc. The first reference I can see of it is in the divorce papers and even then there appears nothing more than the pleader’s say so.