4 daughter colonies of the 4a were tested:
DE-6-15-1456-1974 DE-6-15-1457-1974 DE-6-15-1460-1974 DE-6-15-1461-1974
4 tested queens were mated at the mating station:
DE-6-239-38-1975 DE-6-239-39-1975 DE-6-239-40-1975 DE-6-239-47-1975
No daughter colonies from colonies mated at the station were tested yet.