He has an estate in 1969 - this wont be on-line but you can use the information below to order a copy for a small fee either from the Natal archive or alternatively request eggsa.org to copy the file for you
DEPOT NAB
SOURCE MSCE
TYPE LEER
SYSTEM 01
REFERENCE 858/1969
PART 1
DESCRIPTION DICKSON, GEORGE HENRY. BORN IN BIGGAR, SCOTLAND. PRSP DICKSON,
EVELYN ALICE. (BORN HEMPHILL). NO TRACE. DECEASED ESTATE.
STARTING 19690000
ENDING 19690000