Corsi's example of a Kenya birth certificate is not from the area of the Kenyan birth certificate.
Furthermore, evidence STRONGLY shows that the "Republic of Kenya" first existed BEFORE December 12, 1964, contrary to what Wiki might say.
PART of the strategically-important British Protectorate coastal region surrounding Mombasa (known as "Coast Province" today), is known by locals as the "ten-mile strip" and is UNIQUE.
This area was LEASED to the IEAC from the Sultan in 1895 -- similar to the land lease the US had with the Panama Canal where McCain was born in 1936 (ding, ding!).
Many of the local Muslims did not want to be annexed by Zanzibar as the UK handed over control to the people of the region.
Assisted by the Brits for whom Lavender worked as a Registrar, and likely pressured by the KADU, evidence shows they started calling themselves the "Republic of Kenya" before the rest of Kenya. This makes sense, as they gained their independence nearly TWO months BEFORE the rest of Kenya on Dec 12, 1963.
The transitional government seems to have started slapping the "Republic of Kenya" on documents and instruments such as deeds, contracts and other associated paperwork (such as birth certificates) to ensure their citizens wouldn't get cut out of agreements later if leaders reneged on their promises.
Please read the following about the "ten mile strip" of what is now part of "Coast Province":
The Constitution of Kenya Review Commission - [Cached Version]
Published on: 9/1/2002
Views were divided as to whether the coastal strip should be treated as a single entity with Kenya Colony, or whether it should be handed back to the Sultan of Zanzibar or it be treated as an independent entity and declared Independent.
In a report submitted to the British Government and the Sultan of Zanzibar entitled ‘The Kenya Coastal Strip Ð Report by the Commissioner’ Mr. Robertson recommended that the coastal strip be incorporated into Kenya before self government and independence subject to certain safeguards being given to the coastal people which should be entrenched in the constitution.
...
Robertson further recommended that the British Government abrogate the 1895 Agreement with the Sultan of Zanzibar and that another Agreement be made between the Government of Kenya and the Sultan of Zanzibar whereby the Sultan of Zanzibar will surrender his Sovereignty claims over the Coastal strip in consideration of the Kenya Government undertaking to respect and safeguarding inter alia the maintenance of the Sharia Law for Muslims and the retention of the Kadhi’s Courts.
...
On the 5th October 1963, the said Agreement was actually executed in the form of an exchange of letters between the Prime Ministers of Kenya and Zanzibar Messrs Jomo Kenyatta and M. Shamte respectively.