This small collection contains biographical and autobiographical pieces, correspondence, certificates, newspaper clippings, notebooks on medical lectures (in German), and materials relating to the Straus quarantine case. This is a case in 1904 in which Doctor Sinning was consulted by the Strauss family and diagnosed scarlet fever. Following practice at the time, he notified the Board of Health and placed the Strauss family under quarantine. Mr. Strauss was incensed by this and called in another physician, who declared the case to be measles and wrote to the Board of Health instructing them to remove the quarantine sign. Six doctors were eventually called in, including a representative of the Board of Health. Various dispositions were taken, and the case was decided in favor of the first diagnosis, that of scarlet fever, rendered by Dr. Sinning.