Mr Chandler helped organise the two-day reunion to mark 60 years since the school opened.
He put out a call last month for students who were at the school when it first opened on February 2, 1960, to come back and celebrate the milestone.
About 40 former students attended the two-day event last week.
Mr Chandler was a student at the school when it officially opened.
“It has been excellent. It has been really nice catching up with people I have not seen for 10-30 years,” Mr Chandler said.
He said while some people had changed a lot, some still looked the same.
The celebrations included poetry, a speech from former principal John Godfrey on the school’s past successes, a lunch and dinner and tours of the school.