| Quellen  | 
- [S9046]  Ancestry.com, USA, Find A Grave-Index, 1600-heute, (Name: Ancestry.com Operations, Inc.; Location: Lehi, UT, USA; Date: 2012;).
 
https://www.findagrave.com/memorial/211534723/robert-h.-porter 
 
  
- [S8976]  Ancestry Family Trees, (Name: Online publication - Provo, UT, USA: Ancestry.com.  Original data:  Family Tree files submitted by Ancestry members.;), Ancestry Family Tree. 
 
  
- [S9122]  Ancestry.com, Maine, USA, Heiratsregister, 1713-1922, (Name: Ancestry.com Operations, Inc.; Location: Lehi, UT, USA; Date: 2010;), Maine State Archives; Cultural Building, 84 State House Station, Augusta, ME 04333-0084; 1908-1922 Vital Records; Rollennummer: 45. 
 
  
- [S10196]  Ancestry.com, Maine, USA, Heiratsindex, 1892-1996, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 2003;). 
  
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