Wernher von Braun was brought from Germany to the United States at the end of World War II, to develop missiles for the U.S. Army. In addition to working for the military, he helped to popularize the concept of spaceflight through magazine articles and appearances on the Disneyland television show. After NASA was created, he became the director of the Marshall Space Flight Center in Huntsville, Alabama. Von Braun made many public appearances through the Mercury, Gemini, and start of the Apollo eras.
However, Von Braun seemed to have disappeared from public view once the manned Apollo missions began. (Perhaps NASA then wanted to portray the moon landings as a uniquely American accomplishment.) Indeed, because of his absence, I had mistakenly thought until only recently that von Braun had died before the moon landings. (He actually saw the moon landings, retired from NASA in 1972, and died in 1977.)
Did NASA try to keep von Braun out of the public eye during the moon landings? Please support your answer with quotes on the matter from von Braun, astronauts, other NASA employees, or politicians who would know the answer. The presence or absence of on-line videos are not acceptable evidence for an answer.