Her mother , Alexandra , listed Anna 's birthdate as October 29 , 1906 upon her arrival in the United States .
Some of the discrepancies may be owing from the switch from the Old Julian style to the Gregorian calendar .
Her mother , Alexandra , listed Anna 's birthdate as October 29 , 1906 upon her arrival in the United States , although some of the discrepancies may be owing from the switch from the Old Julian style to the Gregorian calendar .