Correspondence with P.H. Kerr, Lord Lothian, is noted as extracted and can be found in the separate file used by Butler in his biography. See MS. Brand 182.

See also MS. Brand 118/1 for correspondence regarding the article "War debts and Reparation", Dec 1928.

MS. Brand 2/1-3; 34; 41-42/2; 70/1-70/3; 96, 127/1128/2; 135/1-135/2; 153/1-153/2; 171/1-171/2; 181