Learn something new every day - Thank You Dan. With the assistance of google and Wikipedia I learned the meaning of a new word - I hail from New York and hadn't come across the word "prothonotary" before! The prothonotary is the chief court clerk in certain courts of law in certain Anglo-American jurisdictions, including Pennsylvania and Prince Edward Island. http://en.wikipedia.org/wiki/Prothonotary On 6/7/2007 4:36:30 PM, dfantore@aol.com wrote: Naturalization papers in Pennsylvania are in the county's prothonotary's office. Check out the LUzerne county web site. I believe early ones like for the time period you're talking are on microfilm from the Family History Library at familysearch.org. Pre-1907 naturalization papers do not have much information except for the country of origin, possibly a signature. Prior to the 1930s, I think 1932?, women got their citizenship through their fathers or husbands. So your great-grandmother's citizenship would under her father's or husband's name. She would not have applied separately. Good hunting. dan