FamilySearch (https://familysearch.org/pal:/MM9.1.1/XX6J-QRB : accessed 17 Nov 2014), Mathildis Henrica Josephina Servaes, 1889. » Quellen » Familienstammbaum Servaes, Maastricht/Venlo/Straelen/Neuss/Düsseldorf » Genealogie Online"> FamilySearch (https://familysearch.org/pal:/MM9.1.1/XX6J-QRB : accessed 17 Nov 2014), Mathildis Henrica Josephina Servaes, 1889. » Quellen » Familienstammbaum Servaes, Maastricht/Venlo/Straelen/Neuss/Düsseldorf » Genealogie Online">