Correspondence with Mrs Nell Ludbrook (Canberra, Adelaide), 29 May 1952-11 December 1961 Date: 1952-05-29/1961-12-11
Correspondence with N.H. Fisher (Canberra), 22 September 1955-03 June 1965 Date: 1955-09-22/1965-06-03
Correspondence with Owen A. Jones (Brisbane, Cambridge), 19 August 1927-01 April 1946 Date: 1927-08-19/1946-04-01
Correspondence with Owen Singleton (Cambridge, Bergen, Melbourne), 02 May 1949-27 August 1959 Date: 1949-05-02/1959-08-27
Correspondence with P. Collenette (Geological Survey Department, North Borneo), 21 September 1950-04 May 1961 Date: 1950-09-21/1961-05-04