On January 10, 1946 , John H. DeWitt Jr. of the US Army Signal Corps bounced a 112 MHz (2.6 meters) radar beam off the moonThis was the first EME transmission. John was from Nashville and had been a Ham since 1921. He joined the US Army Electronic Branch in 1942. Two years later, he became director of the Evans Signal Laboratory at Belmar, New Jersey.
He actually beat out another radioman trying for the same acheivement in Hungary. Zoltan Bay suceeded in his first EME a mere two weeks later with radar of 2.5 m on february 6th. The first scientifically useful radar echoes, however, were those made by Frank Kerr and Shain. On November 1947. Kerr, shain and the crew at CSIRO demonstrated with a 15m echo that the short period variations of Earths rotation were caused by the vibration of the moon.DeWitt just took that eperience and developed radar for locating mortars and directing counterfire. http://www.elite.net/~k7xq/eme.html He later returned to Nashville and broadcasting, eventually becoming president of commercial radio station WSM.