My historical information for Mundijong/Mundijong Centrals is a bit scattered.
I know they were formed in 1909 and their only SSFA flag was that year, but I have little on their pre-WW2 affiliations except Mundijong/Byford played in the SSFA in 1927 and Mundijong played in the SSFA in 1929.

I don't know where they played in 1948 and 1975 - were they in recess or is anyone able to fill in the blanks?
(SSFA either side of 1948; FESFA in 1974 and MDFL in 1976)