It was long thought that their deaths occurred only a few weeks before British soldiers liberated the camp on 15 April 1945, but research in 2015 indicated that they may have died as early as February.
Diduga mereka tewas beberapa minggu sebelum tentara Inggris membebaskan kamp pada tanggal 15 April 1945, tetapi riset baru pada tahun 2015 menunjukkan bahwa mereka meninggal dunia kemungkinan pada bulan Februari 1945.