FamilySearch (https://familysearch.org/pal:/MM9.1.1/KZN5-7YQ : accessed 17 Nov 2014), John Baptist Servaes, 1917-1918. » Quellen » Familienstammbaum Servaes, Maastricht/Venlo/Straelen/Neuss/Düsseldorf » Genealogie Online"> FamilySearch (https://familysearch.org/pal:/MM9.1.1/KZN5-7YQ : accessed 17 Nov 2014), John Baptist Servaes, 1917-1918. » Quellen » Familienstammbaum Servaes, Maastricht/Venlo/Straelen/Neuss/Düsseldorf » Genealogie Online">