Since 1981, red cell samples from families were tested with anti-Aua and, since 1986, with both anti-Aua and anti-Aub in an attempt to elevate Auberger to a blood group system status. The results show that Auberger is not part of the Kell (five families), Colton (three families), or Dombrock (two families) blood group systems. Exclusion from four more systems (Di, Yt, LW, Ch;Rg) is required before system status may be claimed.