- FamilySearch Family
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 22 Jun 2016), entry for Bertha Hawes, person ID K4GX-KR4.
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 22 Jun 2016), entry for Bertha Hawes, person ID KN8N-5ZN.
» Quellen » Familienstammbaum M. Tolsma » Genealogie 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 22 Jun 2016), entry for Bertha Hawes, person ID K4GX-KR4.
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 22 Jun 2016), entry for Bertha Hawes, person ID KN8N-5ZN.
» Quellen » Familienstammbaum M. Tolsma » Genealogie Online">