FamilySearch (https://familysearch.org/pal:/MM9.1.1/2NZ8-65Q : accessed 16 Nov 2014), Francis Charles Servaes, 1861. » Quellen » Familienstammbaum Servaes, Maastricht/Venlo/Straelen/Neuss/Düsseldorf » Genealogie Online"> FamilySearch (https://familysearch.org/pal:/MM9.1.1/2NZ8-65Q : accessed 16 Nov 2014), Francis Charles Servaes, 1861. » Quellen » Familienstammbaum Servaes, Maastricht/Venlo/Straelen/Neuss/Düsseldorf » Genealogie Online">