Don Bradman's first duck occurred in his twenty-first innings - though his following two Test innings saw him score 226 and 112 runs. Bradman scored a total of seven ducks in Test cricket, including the legendary final innings in which he was dismissed for a duck.
He was bowled on the first ball for a duck (zero). Four runs would have left him an average of 100 - it ended on 99.94
the Ganges river valley
To get out without scoring on both innings is a pair, to get out without scoring first ball is a golden duck, so to get out without scoring first ball on both innings is a golden pair.