Includes photographs of family groups, photos and ephemera from visits to Europe including Germany and Normandy, cuttings from a royal visit to Newcastle and Women's Institute ephemera.

This volume opens with a portrait of Charles and Mary dated September 15th 1903, followed by country-wide local and national press cuttings documenting their engagement and future marriage, going on to describe the ceremony, giving a comprehensive presents list and detailing their new home. There is also a wedding souvenir supplement celebrating their union, with pictures of Mary's dress and bouquet. A series of posed portraits shows Mary and Charles on the steps of Wallington, with images of the North Street address in London appearing near the end of the album and dated August 1904. Interior shots of Wallington are on the back pages.

Includes family groups, photographs of the Wallington estate and images and ephemera from the Newcastle People's Theatre.

Includes photographs of the Trevelyan family and Wallington estate, photographs from the Musikheim in Frankfurt and visits to Prague and Russia, cuttings and ephemera relating to local events, including the opening of the Great Wallington Railway.

Includes photographs of the Trevelyan family and Wallington estate, Elsa and Herbert Richmond's silver wedding anniversary, the opening of the Middlesbrough Winter Garden, the marriage of Bridget Richmond to William Plowden, Charles presence at the opening of youth hostels, Mary's visit to Scandinavia with the Association of Country Women of the World and Nazi party ephemera.

Includes photographs of the Trevelyan family and Wallington estate, cuttings relating to Hugh Bell's death, politics and family, photographs of 95 Sloane Square, cuttings relating to a 'raid' at Wallington Hall and cuttings, photographs and ephemera from Katharine Trevelyan [Kitty]'s marriage to Georg Gotsch.

Includes photographs of the family and Wallington estate, cuttings and ephemera relating to local events and Katharine [Kitty] Trevelyan's hike across Canada, photographs from Mary Caroline Trevelyan's marriage to John Moorman and the Trevelyan Hunt.

Includes photographs of the family and Wallington estate, cuttings regarding Charles and Mary's silver wedding anniversary, the introduction of child allowance for estate tenants, election ephemera and content relating to the marriage of Pauline Trevelyan and John Dower.

The album contains mostly family photographs and memorabilia, including the celebration of Sir Hugh and Lady Florence Bell's 50th wedding anniversary, Sir Hugh's 80th birthday, and the deaths of George Otto and Lady Caroline Trevelyan. There is also brief reference to the death of Gertrude Bell.
There are frequent photographs of the Trevelyan children with their cousins the Bells and Richmonds, and trips with the Order of Woodcraft Chivalry, school sports days, pageants and plays. There are postcards from a family trip to Belgium and Germany, including a visit to Salem.
There are also newspaper cuttings on the careers of family members, particularly Charles and Hugh Bell, and ephemera relating to Mary's involvement with the Council for the Protection of Rural England. Further ephemera relating to the 1927 solar eclipse is also included.
Following the death of Lady Caroline, a photographic record of the house and gardens at Welcombe is made, and the beginnings of capturing the transition from George Otto to Charles and Mary's ownership of Wallington can be seen on the final pages.

Volume 12 begins with a picture of Patricia and Geoffrey Trevelyan in January 1925. Subsequent locations include India and Bombay, Downderry and Fowey in Cornwall, Sidcot in Somerset, Housesteads, Norham, Bamburgh, Etal and Rounton. A poster advertising a Concert by Cambo Women's Institute reads 'Music & Recitations. 3 Scenes from Bernard Shaw's 'St. Joan'. A series of formal family photographs follow at Rounton, and another Concert programme, this one hand-written and dated Dec 31st 1925, is for 'Wings of the Desert'. It requests 'Will gentlemen kindly remove their hats'. The final page bears a press cutting and article titled "Two Women of Irak" (referring to Gertrude Bell and Halida Hanem Edib.)
The album also contains 5 prize tickets from the Cambo exhibition of August 1925.