Professor Darryl McCullough received his doctorate from the University of Michigan in 1978 and joined the OU Math Department in the same year. He is the author of numerous research papers in low-dimensional topology, and a frequent speaker at national and international conferences. His service contributions to the department, the University and the mathematics community as a whole are outstanding. For his many achievements he was awarded a presidential professorship in 2007. After devoting his entire professional career to the OU Mathematics Department, Professor McCullough retired in 2011. He now lives in southwest Florida and grows tropical fruit.