Naturalization records are filed in city, county, state, and federal courts.
The City Archives has naturalization records filed in Philadelphia’s city and county courts from 1793 to 1930. Naturalizations were filed in several different courts:
- Court of Common Pleas
- Court of Quarter Sessions
- County District Court
- Mayor’s Court
After 1930, naturalizations were only filed only in federal courts. Also, before 1922, many women were not naturalized and records are incomplete.
For Philadelphia naturalization records filed at the state level, contact the Pennsylvania State Archives.
For Philadelphia naturalization records filed at the federal level, contact the Philadelphia branch of the National Archives.