LARGO, Fla. - Robert S. Johnson, D.M.D., 62, died Nov. 5, 2011, in Tampa, Fla., after a brief illness. Bob was born Oct. 30, 1949, in Bangor. He was valedictorian of Mattanawcook Academy in 1968. He and his wife, Katie (Thomas) were married Aug. 8, 1970, at First Congregational Church, Lincoln. He graduated with highest honors in chemistry from the University of Maine and with a dental degree from Tufts University, Boston. Bob rose to the rank of colonel while in the U.S. Air Force, earning two Meritorious Service medals and an Air Force Commendation. He was an accomplished oral and maxillofacial surgeon in private practice in Florida. He loved playing sports of all kinds, recreational running and bicycling. He was an avid adventure motorcyclist and enjoyed his time on the motorcycle riding across the country. His favorite destination, however, was his cherished and beloved Cold Stream Pond. Bob and his family spent many wonderful summers enjoying the lake and the back-country of central Maine. He never backed away from a challenge or an adventure and lived life to the fullest every day. He is survived by his wife of 41 years, Katie; son, Thomas and his wife, Marlene Johnson, of St. Petersburg, Fla.; daughter, Jill and her husband, Ken Roberts, of Chicago; grandsons, Parker and Jacob Roberts; grandpuppies, Penelope and Pheobe; and extended family from Maine and Florida. At his request, no formal service was held. In lieu of flowers, a memorial scholarship has been established to benefit a fourth-year chemistry student at the University of Maine. Donations may be made payable to University of Maine Foundation, care of Dr. Robert S. Johnson Scholarship Fund and mailed to Cornerstone Community Bank, attention: Dr. Robert S. Johnson Scholarship Fund, 12933 Walsingham Road, Largo, FL 33774.