Correspondence with C.Anderson (Australian Museum, Sydney), 29 June 1923-27 January 1939 Date: 1923-06-29/1939-01-27
Correspondence with C.A. Sussmilch (Sydney), 30 October 1936-01 February 1937 Date: 1936-10-30/1937-02-01
Correspondence with Charles A. Fleming (Geological Survey, Wellington, Lower Hutt), 18 March 1949-14 March 1969 Date: 1949-03-18/1969-03-14
Correspondence with Charles Ewen (New Plymouth) and Miss R. Sutton (London), 03 March 1896-26 October 1896 Date: 1896-03-03/1896-10-26
Correspondence with Charles R. Laws (Dunedin, Auckland), 20 October 1929-04 April 1950 Date: 1929-10-20/1950-04-04
Correspondence with David Ride (Oxford, Western Australian Museum, Perth), 23 July 1954-19 February 1969 Date: 1954-07-23/1969-02-19
Correspondence with D.E. Thomas (Mines Department, Melbourne), 16 November 1951-13 October 1961 Date: 1951-11-16/1961-10-13
Correspondence with D. Hamilton (University of Otago), 05 March 1954-28 June 1956 Date: 1954-03-05/1956-06-28
Correspondence with Donald F. McMichael (Australian Museum), 07 June 1956-10 October 1956 Date: 1956-06-07/1956-10-10