Fire Chief Casino Clogston is retiring at the end of March, saying he is ready to move on. Deputy Chief Tom Morrison and Captain Jeremy Bonan say they are ready to move up. An open house on Friday, March 29, from 10 a.m. to 2 p.m., will honor Clogston for his 29 years as a full-time firefighter in Plymouth, but he said his involvement goes back much farther. Although the Plymouth Fire Department was incorporated on July 1, 1831, it was not until 1969 that it had its first full-time chief — Clogston’s grandfather. “As a young boy, I’d walk to wherever the fire was to find him,” Clogston recalled. When the Boy Scouts created a local chapter of its Fire Explorers program, Clogston joined at age 16, and he got onto the Plymouth force at age 18. “I was promoted to call firefighter in 1989, and was hired full-time in 1990,” he said.