Great Uncle Emil Jacobson becomes a citizen?

 106 years ago this month my great uncle Emil became a naturalized citizen of the United States.

On the 23rd of December 1911, just 3 1/2 months after entering the US as an immigrant, John Emil declared his intention to be a U.S. citizen in Moline, Rock Island, Illinois. After living the prerequisite 5 years in the U.S. he first petitioned for citizenship in Moline on 6 October 1917. 

That petition was denied as he no longer lived in the Moline jurisdiction. HIs petition was granted and he became a citizen 11 Feb 1911 in Henry county Illinois, where he now lived.

His wife Anna also became a citizen automatically with John Emil's naturalization. The law would change in 1922. At that time she would have had to personally apply for naturalization on her own merit.

Interestingly the oath of allegience states...

"I hereby declare, on oath, that I absolutely and entirely renounce and abjure all allegiance and fidelity to any foreign prince, potentate, state, or sovereignty, and particularly to Gustavus V the King of Great Britain and Ireland of whom I have been heretofore been a subject ,that I will support and defend the constitution and laws of the United States of America against all enemies foreign and domestic, and that I will bear true faith and allegiance to the same."

John Emil signed under oath and it was notorized! Did no one until I in 2025 notice that Gustavus V was not the king of Great Britain and Ireland but the King of Sweden? If anyone had noticed would his naturalization have been invalid?

Wow,

**click on document to enlarge it for easier reading**