Robert Leslie Cass, Sr., 87, of Mount Dora, Florida, passed away February 11, 2017. Mr. Cass was born December 15, 1929 in Colorado Springs, CO. He was an Air Commander in the US Air Force. Mr. Cass is survived by his loving wife Phyllis Minerva Cass of Mount Dora; sons Rob (Natliie) Cass, Jr. of Tavares and Stephen Cass of Atlanta, GA.; one grandchild Darian Cass of Tavares.