Articles (in Dutch) by De Witt Hamer for magazines such as Suid-Afrika and Huisgenoot, Hollands Weekblad voor Suid-Afrika, Nieuwe Ro.tterdamsche Courant. Includes two articles In English on Rain-making and Queen Mamatolla, Article by J.J. Verselewel de Witt Harner on Battle of Elandslaagte in 'Nederlandse Historien', Articles on Boer P0Ws. Censor stamps and Boer women and children.

Includes amongst others: A leather case; Family Bible; 'Nederlands Patriciaat' containing an entry for B.G.V. De Witt Hamer; holograph diary (written in pencil, and later version (written in ink) while De Witt Hamer was a prisoner of war on board H.M.S.'Penelope', describing the battle of Elandslaagte; Album with handwritten poems 1900. framed document dated 1900 and awarded to De Witt Lamer in recognition of his services to prisoners of war on St. Helena; correspondence and medal in connection with the award in 1923 of the Knighthood of the Order of Oranje-Nassau; leather case containing a CV of De Witt Hamer and miscellaneous letters and photographs; illuminated scroll awarded to De Witt Hamer on the occasion of his retirement from the Miners' Phthisis Board, 1922: file containing correspondence, personal papers and obituaries of De Witt Hamer. (Note: Photos stores with photo collection.

Includes 'Onze Krijgsofficieren' - album with photos and life-stories of the Transvaal Generals and commanders, published by " Volksstem Kantore, Pretoria, 1904 and various other publications in Dutch and English. Also extracts from 'Men of the Times' giving information of the early history of Johannesburg and Pretoria, and 'St. Helena Guardian' for 1900-1902.