- FamilySe
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 29 Jun 2016), entry for Cornelia Wilemina Alter, person ID K42J-22T.
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 29 Jun 2016), entry for Cornelia Wilhelmina Alter, person ID K24V-7HX.
» Quellen » Familienstammbaum M. Tolsma » Genealogie Online">
- FamilySe
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 29 Jun 2016), entry for Cornelia Wilemina Alter, person ID K42J-22T.
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 29 Jun 2016), entry for Cornelia Wilhelmina Alter, person ID K24V-7HX.
» Quellen » Familienstammbaum M. Tolsma » Genealogie Online">