Roland Peter Wright, 83, of Crown Lane, Farnham Royal, was found guilty of abusing five boys aged between eight and 13 by an Amersham Crown Court jury.
He had denied 10 charges of indecent assault and two of indecency with a child at Caldicott Preparatory School.
He was put on bail for sentence in February 2014. The judge has asked for medical reports.
Peter Garsden of QualitySolicitors Abney Garsden, acts for some of the victims of Wright, has issued proceedings in the Manchester County Court, and is appealing for any other victims and witnesses to come forward.
A full version of the story appears on various media outlets such as the Daily Mail here