On March 27, 1940, the US Consul in Stuttgart, Samuel W. Honaker, sent report no. 347 to Donald R. Heath, the First Secretary at the U.S. Embassy in Berlin. This concerned the alleged transfer of mental patients from an asylum in Rottweil to concentration camps where they were allegedly being subjected to experiments with poisoned gas. When this is checked against other sources, the allegation is true to the extent that 45 persons were transferred from Das Vinzenz von Paul-Hospital in Rottweil (a location also known as Rottenmünster due to its religious origins as the Zisterzienserinnenkloster Rottenmünster) on February 3, 1940, to Grafeneck. On July 2, in his report no. 353, Honaker passed on far more detailed information about Grafeneck from "a source believed to be thoroughly reliable." These details are pasted below.
Figure 1: Dispatches. N.d. Records of the Intergovernmental Committee on Refugees, 1938-1947, pp.146-148. U.S. National Archives. Archives Unbound. Web. 4 Feb. 2017.