Report on the correspondence and family papers of Charles Vane-Tempest-Stewart, 7th Marquess of Londonderry, and of Edith Helen, Marchioness of Londonderry, 1864-1959.
Great Britain.Royal Commission on Historical Manuscripts.
Great Britain.National Register of Archives.
[London?] : [Royal Commission on Historical Manuscripts : National Register of Archives],
1978.
"No. 78/27."