Named in memory of Robert R. McMath (1891-1962), astronomer, engineer and businessman. Co-donor of the McMath-Hulbert Observatory to the University of Michigan in 1931, he served as its director during 1931-1961. He was an adviser to the National Science Foundation in its early years and chaired the panel that advised NSF on the need for a national observatory and conducted the site survey leading to the selection of Kitt Peak. He played a leading role in the incorporation of AURA, served as its first president (1957-1958) and then as chairman of the AURA board. Name proposed by F. K. Edmondson.