Knoxville Catholic only had BB back in the 60s. I think their first season of football was firing up in the spring of 1977. That spring, they came down to Vonore, and had a three way scrimmage with the Blue Devils, and Greenback. I was on the Greenback team that year, and most of us did not even know Catholic was going to be there, until the coaches told us as he were leaving to go down there.
Their first few seasons were rough. They played their home games at an old stadium close to the old campus on the east side of Knoxville. But by the mid 80s, they started building something. Greenback had some heated rivalries before the Blount County schools consolidated, and have since had heated rivalries with CAK, Oneida, Coalfield, Midway, Harriman and a few others. But there was good old fashioned hate between Greenback and Knoxville Catholic before they moved up in classification. Probably the second most hated rival Greenback ever had.
As to Webb, I always remember the Spartans having a good program. We never played or scrimmaged them during my days, but they had some good players back in the 70s. Billy Arbo is the main one that comes to mind.
Alcoa Basketball? Yeah, they have always been great. Vernon Osborne was a damn good coach.