“A problem with both versions: Mombassa was not part of Kenya in 1961, it was part of Zanzibar until 1964. So a birth in Mombassa in 1961 would not have been listed on a Kenyan birth certificate.”
Actually, from the research I did yesterday, citizenship in Kenya is determined by the father. If the daddy is a Kenyan, the kid is a Kenyan. It doesn’t matter where the kid is born.
From the UK border agency
It was a British colony at the time of his birth, correct?