Sadka believed that Hugh Low, third British resident at Perak, was "one of the greatest of Malaya's administrators," but noted that he had been neglected by writers of Malayan history, with only passing references made in the notes made by Swettenham and Winstedt. At that time his private papers could not be located and much of Perak's official records, and those of the Colonial Secretary's Office in Singapore had been destroyed during the Japanese Occupation of Malaya. The only thing, remaining at that time was the first volume of his handwritten journals, at that time kept at the Federal Secretariat in Kuala Lumpur [and now kept at the National Archives of Malaysia, Kuala Lumpur], that spanned his first eight weeks in Perak (19 April to 15 June 1877).