[Rides3]

4) your paternal or maternal grandfather was born in the United States or a country other than Italy, your paternal or maternal great grandfather was an Italian citizen at the time of his birth, neither you nor your father or mother, or your grandfather ever renounced your/their Italian citizenship. Please note: a grandmother born before 1/1/1948 can claim Italian citizenship only from her father and can transfer it only to children born after 1/1/48.

Your grandfather naturalized as a U.S. citizen with his father. Naturalization as a U.S. citizen renounces any other citizenship.

Naturalization Oath

[Bubba Ho-Tep]

Your grandfather naturalized as a U.S. citizen with his father.

My grandfather was born in the United States and was always a citizen. He didn't naturalize, never had a green card, and was 23 years old when his father naturalized. Oh, by the way, that was a few months after my grandfather's brother was killed in Normandy. I guess to you he wasn't a citizen either when he died for this country.

Naturalization Oath

Maybe you can point to the part of your link that says your adult children are also naturalized by this oath.