Kellogg received treatment at the Veterans Administration Hospital in the Bronx, New York City, New York. He became an ardent supporter of wheelchair athletics. He coached the Pan Am Jets as well as the Brooklyn Whirlaways. He was head coach of the USA Stoke Mandeville Games team as well as the head coach of the 1964 US Paralympic Basketball Team where the USA team won the gold medal. He was inducted into the National Wheelchair Basketball Association's hall of fame in 1981. In 2000, Kellogg was inducted into the Virginia Sports Hall of Fame.