41. DMO/ADD/57/26 Reference (shelfmark): DMO/ADD/57/26 Title: Second Annual Report Collection Area: Map Collections Languages: English Date Range: 1913 Extent: 6 pages
42. DMO/ADD/57/27 Reference (shelfmark): DMO/ADD/57/27 Title: Third Annual Report Collection Area: Map Collections Languages: English Date Range: 1914 Extent: 5 pages
43. DMO/ADD/57/28 Reference (shelfmark): DMO/ADD/57/28 Title: Letters relating to circulation and retention of copies. Collection Area: Map Collections Languages: English Date Range: 1912-1913 Extent: 3 pages
44. DMO/ADD/57/29 Reference (shelfmark): DMO/ADD/57/29 Title: Amendment to War Book, 1913. Zanzibar Collection Area: Map Collections Languages: English Date Range: 1913 Extent: 1 page
45. DMO/ADD/58/1 Reference (shelfmark): DMO/ADD/58/1 Title: Belgium. Road and River Reports. Vol. I. Collection Area: Map Collections Languages: English Date Range: 1912 Extent: 1 vol. (320 pages, with a map)
46. DMO/ADD/58/2 Reference (shelfmark): DMO/ADD/58/2 Title: Belgium. Road, River and Billeting Reports. Vol. II. Collection Area: Map Collections Languages: English Date Range: 1913 Extent: 1 vol. (664 pages, with 2 maps) in a Rexine clip case.
47. DMO/ADD/58/3 Reference (shelfmark): DMO/ADD/58/3 Title: Belgium. Road, River and Billeting Reports. Vol. II. Supplementary Routes. Collection Area: Map Collections Languages: English Date Range: 1914 Extent: 1 vol. (68 pages)
48. DMO/ADD/58/4 Reference (shelfmark): DMO/ADD/58/4 Title: Belgium. Road, River and Billeting Reports. Vol. III. (Incomplete.) Collection Area: Map Collections Languages: English Date Range: 1914 Extent: 1 vol. (424 pages) with a map
49. DMO/ADD/58/5 Reference (shelfmark): DMO/ADD/58/5 Title: Belgium. Road, River and Billeting Reports. Vol. IV. Collection Area: Map Collections Languages: English Date Range: 1914 Extent: 1 vol. (91 pages)
50. DMO/ADD/71/1 Reference (shelfmark): DMO/ADD/71/1 Title: ‘Index to General Staff Appreciations and Memoranda prepared for the Cabinet, &c.’ Printed May 1922. ‘Secret.’ Scope & Content: A subject index covering papers dated from September 1915 to December 1921. Collection Area: Map Collections Languages: English Date Range: 1915-1922 Extent: 96 pages