...the 25,000 to 30,000 Germans who in 1933 were Jehovah's Witnesses, an estimated 20,000 remained active through the Nazi period. The remainder fled Germany, renounced their faith, or confined their worship to the family. Of those remaining active, about half were convicted and sentenced at one time or another during the Nazi era for anywhere from one month to four years, with the average being about 18 months. Of those convicted or sentenced, between 2,000 to 2,500 were sent to concentration camps, as were a total of about 700 to 800 non-Germans Witnesses (this figure includes about 200-250 Dutch, 200 Austrians, 100 Poles, and between 10 and 50 Belgians, French, Czechs, and Hungarians).The number of Jehovah's Witnesses who died in concentration camps and prisons during the Nazi era is estimated at 1,000 Germans and 400 from other countries, including about 90 Austrians and 120 Dutch. (The non-German Jehovah's Witnesses suffered a considerably higher percentage of deaths than their German co-religionists.) In addition, about 250 German Jehovah's Witnesses were executed--mostly after being tried and convicted by military tribunals--for refusing to serve in the German military
hfttp://www.ushmm.org/wlc/article.php?lang=en&ModuleId=10006187
From the US Holocaust Museum in Washington's website.