He is married to Ernestine Catharina Christina Conradina Coenen.
They got married on September 21, 1897, he was 32 years old.
Source: 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 Joseph Seymour Ferris, person ID MNJ8-5GB.
_FSLINK: https://familysearch.org/tree/#view=ancestor&person=MNJ8-5GB
Source: FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints
accessed 27 Jun 2016), entry for Johannes Christiaan Tonnet, person ID MCL6-TWP.
_FSLINK: https://familysearch.org/tree/#view=ancestor&person=MCL6-TWP
FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 27 Jun 2016), entry for Johannes Christiaan Tonnet, person ID MCL6-TWP. FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 27 Jun 2016), entry for Johannes Christiaan Tonnet, person ID MCL6-TWP.