FamilySearch (https://familysearch.org/pal:/MM9.1.1/2F1F-W9F : accessed 17 Nov 2014), Thomas Servais, 1919. » Quellen » Familienstammbaum Servaes, Maastricht/Venlo/Straelen/Neuss/Düsseldorf » Genealogie Online"> FamilySearch (https://familysearch.org/pal:/MM9.1.1/2F1F-W9F : accessed 17 Nov 2014), Thomas Servais, 1919. » Quellen » Familienstammbaum Servaes, Maastricht/Venlo/Straelen/Neuss/Düsseldorf » Genealogie Online">