When you factor in a biological factor. What factor? The fact that the first cell to become a new human appears on planet earth within the womb of an unborn, mother to be. Basically Shirley Temple's mother was born July 15, 1893. Subsequently we can estimate when the first cell to become our famous Shirley Temple arrived in this universe - about five months before Shirley Temple's mom.
Therefore the first cell which became Shirley formed during the either Grover Cleveland or Benjamin Harrison Administration. Believe it or not!