According to the Central District FC website, when the Gawler Football League (which included teams from Salisbury and Elizabeth areas) had their application to join the SANFL accepted:
"Officials then faced the difficult task of designing the new entity with delegates from Salisbury, Salisbury North, Elizabeth and Gawler failing to reach consensus on issues such as the Club name and home ground. Eventually the new identity was reached - Central District (derived from the agricultural and meterological definition of the Northern area) was to play its games at Elizabeth Oval (a neutral venue as far as the delegates were concerned). The name Central District was already synonymous with a Queen's Birthday Holiday Football Carnival contested by the Gawler, Barossa, Adelaide Plains and Mid-North Leagues"