- FamilySea
- 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 Johannes Jacobus Spies, person ID LCJ4-LRF.
- 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 Johannes Jacobus Vosloo, person ID 2739-S1C.
» Quellen » Familienstammbaum M. Tolsma » Genealogie Online">
- FamilySea
- 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 Johannes Jacobus Spies, person ID LCJ4-LRF.
- 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 Johannes Jacobus Vosloo, person ID 2739-S1C.
» Quellen » Familienstammbaum M. Tolsma » Genealogie Online">