The school was founded by Edward Wilson in 1615 and was located in Camberwell, now part of Greater London but at that time a small village of cottages, homesteads, inns and larger buildings grouped around a village green. Wilson was born around 1550 in Cartmel, Lancashire, which had its own grammar school, from where he passed on to Cambridge University. No record remains of him taking a degree, although it is known that he went into the Church, being appointed Deacon at Ely in Norfolk in 1576. He subsequently became Vicar of the Parish of Camberwell, which was presented to him by the Queen in person. This would indicate that he favoured the settlement of the Church of England which Elizabeth I was resolved to make. His nephew Peter Danson became a governor of the new school at its founding. Danson was also vicar of Carshalton in Surrey, only one mile from the present site of the school. A further member of the Wilson family, a namesake of Edward Wilson, is named in the charter of the school as the Master.