Anna Maria Barlow especially was tireless in her efforts to promote international understanding and reconciliation during and after the First World War; to this end she maintained an extensive correspondence with influential figures throughout Europe. Also noteworthy among Anna Maria Barlow's papers is her correspondence with her brothers Sir Richard Denman, M.P. and friend of Lord Beveridge, and Thomas, Lord Denman, Governor General of Australia at the time when the foundation stone for Canberra was laid. The collection comprises personal papers, political papers, legal documents, financial and domestic papers, family history and photographs.