Pupils Lined Up For?

No teacher again, pupils on the loose, but all in a line what are they waiting for?

Mark Smith, Michael Merryweather, Amanda Brogan, Hayley Maxfield, Lesley Clarke, ??, Sandy Ainsley, Marie Gray, Jackie Champion, Susan Phillips, Sandra Leng, Gillian Harrison, Linda Norris, Sharon Swales.

Image courtesy of Marian Toulson and thanks to Jeff Allinson and Sharon Stone for the updates.