Dr. Kelleher was a scientist from an early age, he set up a chemistry lab in his bedroom at the age of eight urged on by the question “Why?”: Why is grass green?; Why is blood red? Why is the sky blue? The in-depth answers to these questions came while studying chemistry at the University of Notre Dame and doing his Ph.D. research on Hemoglobin in Nigeria, Africa. He looks forward to fostering a “spirit of wonder” among the Chesterton students especially in the science classes.
While teaching and doing chemistry research in Nigeria for twenty-three years, he also developed programs for the university and high school students that trained them in virtue-leadership helping them see the value of working for the common good of society rather than merely one’s personal good.
In addition to chemistry he loves philosophy, poetry and chess. Intellectually, his favorite interest is the unity among the truths of science, philosophy and faith. For example, he tells his friends that he does not believe that God exists; rather, he knows that God exists. It is the workings of science, especially in the area of molecular biology, that have lead him to the conclusion that there is a Mind of the Universe.
He is not a fine artist (painter or sculptor) but he does write poetry and songs, and play the guitar. And last but not least, having inherited athletic genes from both parents, he plays numerous sports. In high school he quarterbacked the football team and was point guard for the basketball team. HIs parents taught him water-skiing, snow-skiing and golf. in Nigeria he learned the beautiful game of soccer. He looks forward to helping Chesterton developing some good sports programs especially basketball and soccer in the future.