Muskie Days in Nevis is about to celebrate its 75th year, and commemorative buttons have been produced each year since the sixth celebration Dick Casassa has them all. The Nevis resident will soon attend his 55th Muskie Days celebration, and has been in love with the event since the first time he stopped by. “Back in 1972, my mother- and father-in-law brought us up here to go fishing,” Casassa said. “While we were here, we went to Muskie Days.