Interesting links :

FieldsofHonor-database website
Wikipedia page about the American War Cemetery Margraten
Foundation United Adopters American War Graves
The Faces of Margraten
ABMC.gov Margraten

US 84th Division in World War II
Battle for Geilenkirchen
Beeck (in German)
Operation Clipper
9th US Army attacks : 21-28 November 1944
Siegfried Line / Westwall