This latest collection of pictures from the Mid Ulster Mail archives show the pupils all dressed up for the event and it certainly looked like a great night. Check out the photos and see who you recognise.
If you fancy seeing more pictures from a big night out in years gone by, check this out too: 13 pictures to turn the clock back to a great night out in Mid Ulster in 2007
1. All smiles
Andy McGuckin and Alison Colbert at Cookstown High School formal held in the Glenavon House Hotel in 2006. Photo: Simon Robinson
2. Dressed to impress
Smiling for the camera at Cookstown High School formal were Cathy Wilson, Gillian Parke and Gillian Morrow. Photo: Simon Robinson
3. Enjoying the night
Tracey Lawrence, Helen Bell and Claire Workman captured at Cookstown High School formal. Photo: Simon Robinson
4. Great night out
David Campton and Ashleen McLean at the formal in 2006. Photo: Simon Robinson