David Lusk, 2019 Ada HS commencement speaker, poses with two generations of his students following Sunday's graduation. From left, Arlene (Lasko) Allison ‘93, Scott Allison ‘93, Rob Allison ‘19, David Lusk (chemistry and physics teacher), Brice Ferguson ‘19, Adam Ferguson ‘93, and JoEllen (Fox) Redshaw ‘93. (From Ada Bullldogs Facebook)