None of the records I have seen of Wernher von Braun's trip to Antarctica mentions the search for or recovery of meteorites. That absence is highly conspicuous, because prior to 1969 the discovery of a meteorite of any origin in Antarctica was an incredibly rare event. Between 1911 and 1969 only four meteorites had been found in Antartica, and none of them were of lunar origin. Had Von Braun found one on his trip, it would have been a herald event in the international scientific community. The first meteorites of lunar origin were discovered in the 1970s but recognized as lunites only in the 1980s when they were compared to Apollo anorthosite specimens.