Correspondence with Celestino dos Anjos Barreiros, who transcribed documents from the Biblioteca da Ajuda for Braga, 1959-1965 Unit ID: 10 Date: 1959/1965
Correspondence with Charles Boxer, Hong Kong University Press and H. Vetch, together with typescript drafts and page proofs for 'A seller of "Sing Songs": a chapter in the foreign trade of China and Macao', 1966 Unit ID: 9 Date: 1966
Correspondence with Herbert Hilscher, notes, research material and manuscript and typescript drafts of writings, including 'The so-called slave trade at Macao', 'Commerce in Macao' and Herbert Hilscher's 'The city of the Holy Name of God of A-Ma-Cao', 1929-1958 Unit ID: 1 Date: 1929/1958
Correspondence with José Eduardo de Mello Gouveia and Carlos Wemans, 1969-1971 Unit ID: 4 Date: 1969/1971
Correspondence with Laurenço O. Aguilar, particularly re business opportunities in Indonesia, 1968-1973 Unit ID: 34 Date: 1968/1973