Where can I find information about family members who used to work for the FCO/Colonial Office/India Office/Diplomatic Service?
All four organisations produced staff handbooks listing their employees: The India Office Staff Lists are held at the British Library (Asia, Pacific and Africa Collections). Staff handbooks for the FCO and the Colonial Office are available in The National Archives reference section. Arrangements can be made to view these along with other records at The National Archives [opens a new website].