UNRRA and IRO employees initially filled out the supplementary records in duplicate. The original was kept in the camp files and later given to the DP when he or she left the camp; the copy was sent for tracing purposes to the Central Tracing Bureau, and later to the International Tracing Service. By the summer of 1948 at the latest, there were three versions of the form, but the basic information on them was the same. From that point on, the responsible IRO Area Child Care Officers also received a copy. The numbers 1, 2 and 3 on the forms refer to the respective copy. Today the three copies are often filed together in the Arolsen Archives. The fact that there are different comments on them shows that the copies were used by different people and offices.