Marcy,

It is definitely not Vitebsk.  

It is this thing:  https://radzima.net/eng/miejsce/kalyskovka-347.html

I just have no idea what this means.  Looks like some kind of village/area, but it no longer exists.  However it is about 9 miles east of Dolginovo, precisely where the rest of the family lived/was born, etc.
--
Arkady Kamenetsky