- FamilyS
- 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 Francis Ridley Robertson, person ID KZZT-QPF.
- 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 Francis Ridley Robertson, person ID 9DM4-LLJ.
» Quellen » Familienstammbaum M. Tolsma » Genealogie Online">
- FamilyS
- 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 Francis Ridley Robertson, person ID KZZT-QPF.
- 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 Francis Ridley Robertson, person ID 9DM4-LLJ.
» Quellen » Familienstammbaum M. Tolsma » Genealogie Online">