Education
Ohio State University.
Ohio State University.
He is notable for his breakthrough work along with R. C. Bose and South. South. Shrikhande in their disproof of the famous conjecture made by Leonhard Euler dated 1782 that there do not exist two mutually orthogonal latin squares of order 4n + 2 for every n. He was at that time employed in the Universal Automatic Computer division of Remington Rand, but he subsequently joined the mathematics faculty at The University of Illinois. In 1968, he and a Doctor of Philosophy student, K. B. Reid, disproved a conjecture on tournaments by Erdős and Moser.
Parker received his Doctor of Philosophy for work "On Quadruply Transitive Groups" at The Ohio State University in 1957.
His advisor was Marshall Hall, Junior.