- FamilySearch Family
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 28 Jun 2016), entry for Hedwig Mehr, person ID KWDD-TV2.
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 28 Jun 2016), entry for Hedwig Mehr, person ID KWVZ-SR9.
» Sources » Family tree M. Tolsma » Genealogy Online">
- FamilySearch Family
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 28 Jun 2016), entry for Hedwig Mehr, person ID KWDD-TV2.
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 28 Jun 2016), entry for Hedwig Mehr, person ID KWVZ-SR9.
» Sources » Family tree M. Tolsma » Genealogy Online">