Ancestry.com, Maryland, Federal Naturalization Records, 1795-1931 (Lehi, UT, USA: Ancestry.com Operations, Inc., 2016).

• Titel	Ancestry.com, Maryland, Federal Naturalization Records, 1795-1931 (Lehi, UT, USA: Ancestry.com Operations, Inc., 2016).
  Kurztitel	Maryland, Federal Naturalization Records, 1795-1931
  Aufbewahrungsort	Ancestry.com
  Quellen-Kennung	S274
  Text	Petitions for Naturalization, 1903 - 1972. Textual Records. 131 Boxes and 67 Volumes. NAI: 654310. Records of District Courts of the United States, Record Group 21. National Archives at Philadelphia, Philadelphia, Pennsylvania.
  Verknüpft mit Personen: 1	BUSSE, Johanna