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Players who cannot get a game for NZ, RSA, or Eastern Australia Etc, would look at "Countries" like Western Australia,and would suddenly find a parent or grand parent who was born in WA, as they already do for Scotland etc.
Brache would not have qualified for the USA even although he was born there, because he had already played for Western Australia! We could apply that rule to DHP, Pocock, JOC and probably a few others.
This could be fun!