The Collection consists of 2 albums, a box of correspondence and a few loose printed items and photographs. These include:
1) Printed items, particularly those relating to the Rand Aid Association of which Leake was a longstanding chairman and Methodist Churches in Johannesburg. Some brochures refer to Mountcollins House, which was named after Leake's association with the founding benefactors of the College;
2) Monochrome photographs including formal portraits, family photographs and incidental photographs;
3) Newspaper cuttings mostly related to the contribution that Leake made over his many years of involvement in the College, in the Rand Aid Association and the Methodist Church as well as a few social occasions;
4) Artefacts include Leake's passport and cards used to promote his candidacy in a Transvaal provincial election.
5) Correspondence acknowledging Leake's contribution to the development of Johannesburg and the Rand Aid Association.
6) Original certificates and licences issued to Leake and dating back to 1896.
7) Documents of the Wesleyan Church Trust.

The Harris Album - a visual record of the early history of the school.
The Harris letters - printed and bound copies of the letters sent by EM Harris to his sister in England describing the day by day events that took place in the first eight years of the College.