The discovery of Sagittarius A, a discrete radio source associated with the nucleus of the Milky Way, was made by Piddington and Minnett (1951) at 1210 MHz. McGee and Bolton (1954), however, brought to the attention of the astronomical world the association of Sgr A with the Galactic Nucleus. The paper was published in Nature and many well known astronomers (Baade, Oort, van de Hulst, Pawsey, Mills, Kerr, and Shain) were involved in the events leading to publication. We summarize the preparation of this paper, re-examining some details published by Morton (1985). In addition we summarize the significance of five publications from CSIRO, Sydney, Australia, in the period 1951 to 1954.