Johannes S. Wrobel, Jehovah’s Witnesses in National Socialist Concentration Camps, 1933 – 45, Religion, State & Society, Vol. 34, No. 2, June 2006, pp. 89-125 "The concentration camp prisoner category ‘Bible Student’ at times apparently included a few members from small Bible Student splinter groups, as well as adherents of other religious groups which played only a secondary role during the time of the National Socialist regime, such as Adventists, Baptists and the New Apostolic community (Garbe 1999, pp. 82, 406; Zeiger, 2001, p. 72). Since their numbers in the camps were quite small compared with the total number of Jehovah’s Witness prisoners, I shall not consider them separately in this article. Historian Antje Zeiger (2001, p. 88) writes about Sachsenhausen camp: ‘In May 1938, every tenth prisoner was a Jehovah’s Witness. Less than one percent of the Witnesses included other religious nonconformists (Adventists, Baptists, pacifists), who were placed in the same prisoner classification.’".)