Includes details of life at Welcombe and Wallington, reference to Mary Prestwich [Booa]'s funeral, Charles' career and politics, Caroline's health and family news.

Primarily family news. Also comment on recent murders in Ireland, and some reference to politics including Gladstone's Franchise Bill, George Otto Trevelyan's election and thoughts on Irish Union.

Concerning family news, including Charles' trip to Skye and some news of his school.

Concerning the management of the estate at Wallington, Charles' political career, appointment as Third Charity Commissioner, the 1906 General election, including Charles' personal financial account for campaigning, his standing within, and general fortunes of, the Liberal Party, accounts of conversations with Henry Campbell-Bannerman, John Henry Whitley, and Winston Churchill, and parliamentary activity, including the Land Tenure Bill.
Also includes news of the Trevelyan family and the Wallington estate, including of an outbreak of diptheria in Cambo.

Concerning George Otto's writing, prospect of a strike, parliamentary activity including comments on Asquith, Charles and Walter Runciman's opposition to Lord Roberts, and family news.
Includes a letter sent to George Otto from A Drysdale of the Yorkshire Observer asking his opinion on the Home Rule Bill.

Concerning Charles' work in the House of Commons, and hopes for political office and lack of success, the Conservative government and resignation of Arthur Balfour, George Otto's trip to Italy and friendship with Theodore Roosevelt, family news and social occasions.
Also includes a letter to George [possibly George Macaulay Trevelyan] from Caroline describing her hopes for Charles' political future following the 1906 elections.

Concerning trusteeship of a will involving Viscount Knutsford; suffragette activities; the British Neutrality Committee; George Otto's concern at the prospect of war with Germany; Charles' resignation from the government; military situation of the World War I; Charles' work with the Union of Democratic Control; offer of help to Sir Hugh Bell; and discussion of the Trevelyan family's views of World War I.
Also includes letters to Charles and Mary from other members of the Trevelyan family, Mary Prestwich [Booa], Anna M Philips and Hugh Bell.

Relates to her moving to Pasadena to teach, discussion of education in America with reference to Charles' book on Russia.

Mostly relates to the operation of the Union of Democratic Control (UDC). Includes discussion of proposed peace terms with reference to Lloyd George and President Wilson and a request for financial support.

Includes letters from Mary expressing thanks for a chair and regarding family, also letters from family following her death regarding funeral arrangements.
Correspondents include George Otto, Caroline, George Macaulay and Robert Calverley Trevelyan, Anna M Philips and William Prestwich.
Also includes a letter to Mary from George Lowthian Trevelyan from Bombay, sent after her death.