Here's Marge on her step-father's response to the attacks - retold with amusement - a tale of a broken vase in Rose Bay and memories of visiting injured N.Z sailors hospitalized after the attack on ships docked at Garden Island:
http://www.archive.org/details/ReminiscenceOfNightOfSubAttacksOnSydneyHarbourWwii
And Jean with another humorous account of that night and an alarm raised during her work at Spectacle Island: http://www.archive.org/details/ReminiscenceOfMiniSubAttacksSydneyHarbourAlarmSpectacleIslandWwii