Two journals, hardcover, burgundy and tan, containing "Journal of Travel & Observation, H.G.Q. Wales Vol.I-II 1923-1928", handwritten journals, including hand-drawn maps of the areas, of Wales' travels in South America and Southeast Asia. On title page is written "These early writings are not for publication at any time".

A burgundy and tan hardcover journal. It contains the "Journal of Travel & Observation, H.G.Q. Wales Vol.I 1923-1927", handwritten journal of his travels in South America and Southeast Asia. The journal contains maps of Siam and the neighbouring countries, Java, plan of Petchaburi, Cambodia and Cochinchina, plan of the park of Angkor, ground plan of Angkor Wat and longitudinal section of Angkor Wat. There are also the notes of his journey to a "Himpse of the Pampas", the West & East coasts of the Gulf of Siam, Ayutthaya, Chiangmai, Bangkok-Singapore, Java, Petchaburi, Lopburi, Cambodia & Cochinchina, and Toongmisung.

Journal, hardcover, burgundy and tan, containing "Journal of Travel & Observation, H.G.Q. Wales Vol.II 1927-1928", handwritten journal of his travels in Southeast Asia, containing a map of countries around the South China Sea, and notes on Malacca, British North Borneo (and Labuan), The Philippines, Korat and Eastern Siam, Nakon Pathom and Rajburi (Siam), Sukhothai, Sawankalok and Pisanulok (Siam).

A blue softcover journal. It contains pencil and ink notes and drawings about the journey of Quaritch Wales to the ancient cities in the Southern Thailand, such as Phra Nu [Nho?] in Phang Nga, Tung Tuk in Phang Nga, drawings of the Standing Buddha statue in Dvaravati style found in Wat Keu Chaiya (Suratthani). It also includes plans and drawings of many temples, such as Wat Sala Tung Chaiya, a drawing of the lotus on the top of stupa in Wat Maha That Chaiya, Wiang Sra (Sa Phra Narai) and a drawing of the standing Buddha which is similar to Gupta Buddha, a drawing of Siva shrine in Nakhon Sri Thammarat, and a drawing of the Vishnu statue found at Ho Phra Narai Nakhon Sri Thammarat.

Two Journals, hardcover, red, containing "Greater India Research Expedition Season 1935-1936", handwritten journals of Wales' survey mainly in Sri Thep, Thailand. Two further notebooks, bound in green (black), hardback, containing "Compass Survey of Sri Dheb in Siam".

Journal, hardcover, red, titled "Greater India Research Expedition Season 1935-1936 Field Note Book" containing pencil and ink notes and site drawings.

Journal, hardcover, red, titled "Greater India Research Committee Season 1935-36 (Siam) Field Note Book Part II: Sri Thep ([Amphur, Kjiem, Chengrai, Pejabun,] Siam)" containing pencil notes and drawings. There are drawings of Prang Song Phi Nong in Sri thep, Prang Sri thep, boundary stone, inscription (pallava script), Khao Khlang Nok,Siva linga, the male statue [ Krishna lifting Govardhan Hill P.68] and the head of a male sculpture.

Field Survey Book: black, hardback, containing "Compass Survey of Sri Dheb in Siam (Amphur Vijiem, Changvad Pejabun, Siam)", no date. A record relating to the direction, latitude and longitude of the architecture.

Field Survey Book: black, hardback, one page of field notes containing latitude and longitude of the architecture - a continuation of the Compass Survey of Sri Dheb in Siam (Amphur Vijiem, Changvad Pejabun, Siam).

Charles Letts' Self-Opening Diary for 1936, labelled "(Si T'ep eh)", entries January-March, some notes and lists at back of diary. The diary covers Wales' excavation in [possibly Sri thep, Pejabun , Thailand] and time in Bangkok.