List of Aliens to whom Certificates of Naturalization, Record Type: Certificate of Naturalization, Subject: Henry Ohlhausen (Later changed to Olhausen), File Number: File No. 56152 A (note: wife Mathilda Mayer, same date and file number)

• Title	List of Aliens to whom Certificates of Naturalization, Record Type: Certificate of Naturalization, Subject: Henry Ohlhausen (Later changed to Olhausen), File Number: File No. 56152 A (note: wife Mathilda Mayer, same date and file number)
  Short Title	Naturalization Record, Ohlhausen Henry
  Publisher	3 July 1928
  Call Number	M1, page 43
  Repository	National Archives of Canada
  Source ID	S341
  Linked to (1)	Heinrich 'Henry' Ohlhausen