Putting together a list of persons who are able to conduct research work in abstentia
at various historical archives as well as take digital photographs, make copies etc.
Finnish archives (military, government and police)
British National Archives and British war records
German Federal and Military Archives, Freiburg
Hoover Institution, Stanford
Will add more when I find them. All are significantly cheaper than making use of the the institutions themselves to conduct research or copying documents. If other members know of additional research assistants at other historical or military archives, feel free to add to the list.