Uhrig was sent to Sachsenhausen concentration camp .
In 1941 , the Gestapo infiltrated the Uhrig Group with informers and in February 1942 , Uhrig and 200 other members of the Uhrig Group were arrested .
Uhrig Group was sent to Sachsenhausen concentration camp .
In 1941 , the Gestapo infiltrated the Uhrig Group with informers and in February 1942 , Uhrig and 200 other members of the Uhrig Group were arrested .