I have a Canadian friend who's grandmother was a US citizen and later became a Canadian citizen.
Grandma had several children whose births she did not register with the US....gen 2
Those children went on to have children ( my friend, her siblings and cousins)...gen 3
Generation 2, just recently registered themselves and were given US citizenship.
Since gen 2 were "technically" US citizens from their birth, do their children have an entitlement to dual citizenship as well, even though their(gen 2) birth (and subsequent citizenship)wasn't registered until after the birth of gen 3 ?

its complicated I know........

thanks in advance

nevermind i found it myself

The answer (for everyone else) is no... if the parents did not live in the US for more than 5 years before the time of their birth (or 10 depending on when they were born) and two (or five) of those years were after the age of 14...

There is a possibility of getting Citizenship through a grandparent who is still living in the US, but the naturalization must be done before the child turns 18...

Thank you Zyggy......that's just I what I found.

Always appreciate your words