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- [S206069]  FamilyTree.Com, "Ontario Birth Registrations online at Ancestry.com", (Subscription www.ancestry.ca) (Reliability: 3).
 
Name: Frederick James Letby Date of Birth: 22 Jul 1901 Gender: Male Birth County or District: Renfrew Father's Name: Frederick Letby Mother's Name: Elizabeth Jane Mc Connell Archive Name: Archives of Ontario Archive Series: MS929 Archive Reel: 155 
 
  
- [S206266]  Presbyterian (Beachburg and Westmeath, Ontario, Canada), Church Record - Baptisms,Beachburg and Westmeath Presbyterian 1899-1927. 
 
  
- [S647390]  FamilyTree.Com, '"Ontario Birth Registrations online at Ancestry.com", (Subscription www.ancestry.ca) (Reliability: 3).
 
Name: Frederick James Letby Date of Birth: 22 Jul 1901 Gender: Male Birth County or District: Renfrew Father's Name: Frederick Letby Mother's Name: Elizabeth Jane Mc Connell Archive Name: Archives of Ontario Archive Series: MS929 Archive Reel: 155 
 
  
- [S647587]  Presbyterian (Beachburg and Westmeath, Ontario, Canada), Church Record - Baptisms,Beachburg and Westmeath Presbyterian 1899-1927. 
 
  
- [S647700]  Ancestry.com, '"BMD-Quebec Vital & Church Records (Drouin Collection), 1621-1968", (Online publication - Provo, UT, USA: The Generations Network, Inc., 2008.Original data - Gabriel Drouin, comp. Drouin Collection. Montreal, Quebec, Canada: Institut Généalogique Drouin.Original data: Gabriel Drouin, comp. Drouin Collection. Montreal, Quebec). 
  
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