The record of the annulment of her German nationality names her Silly and, like that of her twin sister Inge, gives her date of birth as 02.11.1923. The membership list of her tennis club calls her Lilly and gives her date of birth as 02.12.1923. Both give the same address, Breslau, Kuerassierstrasse 26, as her parents. Inge's 1962 Brazilian visa also gives her date of birth as 02.12.1923.