U.S. census records reported the following naturalization information:
Foreigners not naturalized
Aliens, Foreigners not naturalized
Column 19 - Male citizens of U.S. 21 years of age and upwards
Column 20 - Male citizens of U.S. 21 years of age and upwards where right to vote is denied on other grounds than rebelling or other crime
Column 18 - Naturalization
Column 16 - Whether naturalized or alien
Column 14 - Naturalized or alien
Column 15 - If naturalized, year of naturalization
Column 23 - Naturalized or alien
Abbreviations used in census records relating to naturalization
AL - Individual was still an alien and had not begun the naturalization process.
PA - The individual had filed his “first papers,” also known as declaration of intention.
NA - A naturalized citizen, the individual had completed the naturalization process.