Filby, P. W. 1. (1982). Philadelphia naturalization records: An index to records of aliens' declarations of intention and/or oaths of allegiance, 1789-1880, in United States Circuit Court, United States District Court, Supreme Court of Pennsylvania, Quarter Sessions Court, Court of Common Pleas, Philadelphia. Detroit, Mich.: Gale Research Company.

Filby, P. William 1911-2002. Philadelphia Naturalization Records: An Index to Records of Aliens' Declarations of Intention And/or Oaths of Allegiance, 1789-1880, in United States Circuit Court, United States District Court, Supreme Court of Pennsylvania, Quarter Sessions Court, Court of Common Pleas, Philadelphia. Detroit, Mich.: Gale Research Company, 1982.

Filby, P. William 1911-2002. Philadelphia Naturalization Records: An Index to Records of Aliens' Declarations of Intention And/or Oaths of Allegiance, 1789-1880, in United States Circuit Court, United States District Court, Supreme Court of Pennsylvania, Quarter Sessions Court, Court of Common Pleas, Philadelphia. Detroit, Mich.: Gale Research Company, 1982.