My mother Nannie Dekel Mogendorff told me an outstanding story about this child whom I never met. This is very impressive :
Johnny was known in the surrounding family as having an outstanding capability , for example :
You could go and ask him "Johnny, I was born on dd/mm/yyyy. Tell me what day of the week it was." and he would answer you immediately.
or " Johnny if I were born on dd/mm/yyyy , when I get to be 37 years old, what day of the week would it be? " and straight away he would give you the answer....
