The residency requirement was for naturalization. There was no residency requirement for a qualification for natural born citizen status. The residency requirement was changed from 14 years to five years. Nothing in either statute required that a mother must live in the US for any specific time before giving birth to a Citizen in a foreign country. All that was required is parental citizenship status at the time of birth.
the five year after the age of 14 requirement in place at the time of Obama's birth is inconsistent with the definition of an NBC as defined by the First Congress. Therefore, I don't believe the requirement was effective to deny Obams NBC status if, in fact, he was actually born in Kenya.
This is the reference to residency I was talking about.
It says that children born to overseas US parents are NBCs. But it says that the FATHER had to have resided in the US.
We now say that the one who is the citizen had to have resided whether it's the father or the mother.